2018

• ---

  Wulf, V. & Betz, M. (2018)Towards Transferability in Grounded Design: Comparing two Design Case Studies in Firefighting

  IN Wulf, V., Pipek, V., Randall, D., Rohde, M., Schmidt, K. & Stevens, G. (Eds.), Socio-Informatics – A Practice-based Perspective on the Design and Use of IT Artefacts
  [BibTeX] [Download PDF]

  @incollection{wulf_towards_2018,
  title = {Towards {Transferability} in {Grounded} {Design}: {Comparing} two {Design} {Case} {Studies} in {Firefighting}},
  isbn = {978-0-19-873324-9},
  url = {http://www.wineme.uni-siegen.de/wp-content/uploads/2018/04/Chapter-15-Betz-practice-based-computing.pdf},
  booktitle = {Socio-{Informatics} - {A} {Practice}-based {Perspective} on the {Design} and {Use} of {IT} {Artefacts}},
  publisher = {Oxford University Press},
  author = {Wulf, Volker and Betz, Matthias},
  editor = {Wulf, Volker and Pipek, Volkmar and Randall, David and Rohde, Markus and Schmidt, Kjeld and Stevens, Gunnar},
  year = {2018},
  keywords = {PRAXLABS},
  pages = {459--488},
  }

2017

• ---

  Rohde, M., Brödner, P., Stevens, G., Betz, M. & Wulf, V. (2017)Grounded Design – a praxeological IS research perspective

  IN Journal of Information Technology, Vol. 32, Pages: 163–179 doi:10.1057/jit.2016.5
  [BibTeX] [Abstract] [Download PDF]

  In this paper, we propose Grounded Design – a particular design research (DR) approach rooted in a practice-theoretical tradition. It assesses the quality of information technology (IT) design through evaluation of emerging changes in social practices, which result from the appropriation and use of IT artifacts. The paper starts with a systematic analysis of the reasons for persistent limitations of traditional information systems DR, specifically in coping with problems of contingency and self-referentiality. Following this critique, the principles of Grounded Design are presented. Grounded Design is applied in case studies where we reconstruct the social practices observed before and during the design and appropriation of innovative IT artifacts. We call these context-specific research endeavors ‘design case studies.’ In conducting these case studies, Grounded Design builds upon well-established research methods such as ethnographical field studies, participatory design and action research. To support the transferability of its situated findings, Grounded Design suggests documenting increasing numbers of design case studies to create an extended, comparative knowledge base. Comparing cases allows for the emergence of bottom-up concepts dealing with the design and appropriation of innovative IT artifacts in social practice.

  @article{rohde_grounded_2017-1,
  title = {Grounded {Design} - a praxeological {IS} research perspective},
  volume = {32},
  issn = {0268-3962},
  url = {https://doi.org/10.1057/jit.2016.5},
  doi = {10.1057/jit.2016.5},
  abstract = {In this paper, we propose Grounded Design - a particular design research (DR) approach rooted in a practice-theoretical tradition. It assesses the quality of information technology (IT) design through evaluation of emerging changes in social practices, which result from the appropriation and use of IT artifacts. The paper starts with a systematic analysis of the reasons for persistent limitations of traditional information systems DR, specifically in coping with problems of contingency and self-referentiality. Following this critique, the principles of Grounded Design are presented. Grounded Design is applied in case studies where we reconstruct the social practices observed before and during the design and appropriation of innovative IT artifacts. We call these context-specific research endeavors ‘design case studies.’ In conducting these case studies, Grounded Design builds upon well-established research methods such as ethnographical field studies, participatory design and action research. To support the transferability of its situated findings, Grounded Design suggests documenting increasing numbers of design case studies to create an extended, comparative knowledge base. Comparing cases allows for the emergence of bottom-up concepts dealing with the design and appropriation of innovative IT artifacts in social practice.},
  language = {en},
  number = {2},
  urldate = {2021-04-16},
  journal = {Journal of Information Technology},
  author = {Rohde, Markus and Brödner, Peter and Stevens, Gunnar and Betz, Matthias and Wulf, Volker},
  month = jun,
  year = {2017},
  note = {Publisher: SAGE Publications Ltd},
  keywords = {design case study, grounded theory, IS design research, praxeology, socio-technical systems},
  pages = {163--179},
  }

• ---

  Rohde, M., Brödner, P., Stevens, G., Betz, M. & Wulf, V. (2017)Grounded Design – a praxeological \IS\ research perspective

  IN JIT, Vol. 32, Pages: 163–179 doi:10.1057/jit.2016.5
  [BibTeX] [Download PDF]

  @article{rohde_grounded_2017,
  title = {Grounded {Design} - a praxeological \{{IS}\} research perspective},
  volume = {32},
  url = {https://doi.org/10.1057/jit.2016.5},
  doi = {10.1057/jit.2016.5},
  number = {2},
  journal = {JIT},
  author = {Rohde, Markus and Brödner, Peter and Stevens, Gunnar and Betz, Matthias and Wulf, Volker},
  year = {2017},
  pages = {163--179},
  }

2014

• ---

  Betz, M. & Wulf, V. (2014)EmergencyMessenger: A Text Based Communication Concept for Indoor Firefighting

  IN Proceedings of the 32Nd Annual ACM Conference on Human Factors in Computing Systems, Pages: 1515–1524 doi:10.1145/2556288.2557188
  [BibTeX] [Abstract]

  Finding and rescuing missing or injured people or fighting fire inside burning buildings is a central challenge for fire brigades. To ensure the safety of indoor work, monitoring the operations of firefighting units is crucial. As in most countries, firefighters in Germany utilize radio sets to establish voice communication between indoor operating units and the supervisory structure outside. Based on findings from a long term ethnographic study in cooperation with different German fire brigades over a time span of more than 5 years we analyzed the advantages and disadvantages of the current voice over radio communication tactics and techniques. We designed and evaluated a complementary text based communication device the EMERGENCY-MESSENGER to support the time critical work of indoor units working under harsh conditions, wearing Self-Contained-Breathing-Apparatus (SCBA). We conducted 13 full scale training missions including extensive debriefings to design and evaluate the communication concept and the corresponding device.

  @article{betz_emergencymessenger_2014,
  title = {{EmergencyMessenger}: {A} {Text} {Based} {Communication} {Concept} for {Indoor} {Firefighting}},
  doi = {10.1145/2556288.2557188},
  abstract = {Finding and rescuing missing or injured people or fighting fire inside burning buildings is a central challenge for fire brigades. To ensure the safety of indoor work, monitoring the operations of firefighting units is crucial. As in most countries, firefighters in Germany utilize radio sets to establish voice communication between indoor operating units and the supervisory structure outside. Based on findings from a long term ethnographic study in cooperation with different German fire brigades over a time span of more than 5 years we analyzed the advantages and disadvantages of the current voice over radio communication tactics and techniques. We designed and evaluated a complementary text based communication device the EMERGENCY-MESSENGER to support the time critical work of indoor units working under harsh conditions, wearing Self-Contained-Breathing-Apparatus (SCBA). We conducted 13 full scale training missions including extensive debriefings to design and evaluate the communication concept and the corresponding device.},
  journal = {Proceedings of the 32Nd Annual ACM Conference on Human Factors in Computing Systems},
  author = {Betz, Matthias and Wulf, Volker},
  year = {2014},
  pages = {1515--1524},
  annote = {ISBN: 978-1-4503-2473-1},
  }

• ---

  Betz, M., Dyrks, T. & Wulf, V. (2014)Emergency Messenger als Kommunikationskonzept für Notfallarbeit

  IN i-com – Zeitschrift für interaktive und kooperative Medien, Vol. 13, Pages: 4
  [BibTeX]

  @article{betz_emergency_2014,
  title = {Emergency {Messenger} als {Kommunikationskonzept} für {Notfallarbeit}},
  volume = {13},
  issn = {1618-162X},
  number = {1},
  journal = {i-com - Zeitschrift für interaktive und kooperative Medien},
  author = {Betz, Matthias and Dyrks, Tobias and Wulf, Volker},
  year = {2014},
  keywords = {feuerwehr, hilfsfristen, kommunkation, Koordinator, textnachrichten},
  pages = {4},
  }

2012

• ---

  Ramirez, L., Dyrks, T., Gerwinski, J., Betz, M., Scholz, M. & Wulf, V. (2012)Landmarke: An ad hoc deployable ubicomp infrastructure to support indoor navigation of firefighters

  IN Personal and Ubiquitous Computing, Vol. 16, Pages: 1025–1038 doi:10.1007/s00779-011-0462-5
  [BibTeX] [Abstract]

  Indoor navigation plays a central role for the safety of firefighters. The circumstances in which a firefighting intervention occurs represent a rather complex challenge for the design of supporting technology. In this paper, we present the results of our work designing an ad hoc ubicomp infrastructure to support navigation of firefighters working in structure fires inside the zone of danger. We take a wider approach, complementing the technical questions with the development of effective navigation practices based on technology available today. We provide an overview of the complete design process, from the theoretical and empirical underpinnings to the construction and evaluation of three iterations of the platform. We report the results of our evaluation and the implications and tensions uncovered in this process, and we discuss the challenges and implications of it for the design of ubicomp for firefighters.

  @article{ramirez_landmarke_2012,
  title = {Landmarke: {An} ad hoc deployable ubicomp infrastructure to support indoor navigation of firefighters},
  volume = {16},
  issn = {16174909},
  doi = {10.1007/s00779-011-0462-5},
  abstract = {Indoor navigation plays a central role for the safety of firefighters. The circumstances in which a firefighting intervention occurs represent a rather complex challenge for the design of supporting technology. In this paper, we present the results of our work designing an ad hoc ubicomp infrastructure to support navigation of firefighters working in structure fires inside the zone of danger. We take a wider approach, complementing the technical questions with the development of effective navigation practices based on technology available today. We provide an overview of the complete design process, from the theoretical and empirical underpinnings to the construction and evaluation of three iterations of the platform. We report the results of our evaluation and the implications and tensions uncovered in this process, and we discuss the challenges and implications of it for the design of ubicomp for firefighters.},
  number = {8},
  journal = {Personal and Ubiquitous Computing},
  author = {Ramirez, Leonardo and Dyrks, Tobias and Gerwinski, Jan and Betz, Matthias and Scholz, Markus and Wulf, Volker},
  year = {2012},
  keywords = {Ad hoc deployment, Firefighting, Human-computer interaction, Indoor navigation, Landmarke, Mobile ad hoc network, Navigation, Orientation, Sensor networks, Ubiquitous computing, Wearable computing},
  pages = {1025--1038},
  annote = {ISBN: 0077901104625},
  }

2011

• ---

  Ley, B., Betz, M., Pipek, V. & Wulf, V. (2011)Unterstützung kooperativer Arbeit mit wissenschaftlicher Literatur: Verknüpfung physischer und digitaler Wissensartefakte

  IN Informatik Spektrum, Springer
  [BibTeX]

  @article{ley_unterstutzung_2011,
  title = {Unterstützung kooperativer {Arbeit} mit wissenschaftlicher {Literatur}: {Verknüpfung} physischer und digitaler {Wissensartefakte}},
  journal = {Informatik Spektrum, Springer},
  author = {Ley, Benedikt and Betz, Matthias and Pipek, Volkmar and Wulf, Volker},
  year = {2011},
  keywords = {CSCW, CONTici},
  }

• ---

  Ley, B., Betz, M., Pipek, V. & Wulf, V. (2011)Mixed Reality Tagging – Optionen verbesserten Dokumentenhandlings in der Wissenschaft

  IN Informatik Spektrum, Vol. 34, Pages: 165–177
  [BibTeX]

  @article{ley_mixed_2011,
  title = {Mixed {Reality} {Tagging} - {Optionen} verbesserten {Dokumentenhandlings} in der {Wissenschaft}},
  volume = {34},
  number = {2},
  journal = {Informatik Spektrum},
  author = {Ley, Benedikt and Betz, Matthias and Pipek, Volkmar and Wulf, Volker},
  year = {2011},
  pages = {165--177},
  }

• ---

  Ley, B., Betz, M., Pipek, V. & Wulf, V. (2011)Mixed-Media-Interaktion in der kooperativen Wissenschaftspraxis – Digitale und physische Artefakte verwalten

  IN Informatik Spektrum, Vol. 34, Pages: 165–177 doi:10.1007/s00287-011-0524-0
  [BibTeX] [Download PDF]

  @article{ley_mixed-media-interaktion_2011,
  title = {Mixed-{Media}-{Interaktion} in der kooperativen {Wissenschaftspraxis} - {Digitale} und physische {Artefakte} verwalten},
  volume = {34},
  url = {http://dx.doi.org/10.1007/s00287-011-0524-0 http://link.springer.com/article/10.1007%2Fs00287-011-0524-0},
  doi = {10.1007/s00287-011-0524-0},
  number = {2},
  journal = {Informatik Spektrum},
  author = {Ley, Benedikt and Betz, Matthias and Pipek, Volkmar and Wulf, Volker},
  year = {2011},
  keywords = {CSCW},
  pages = {165--177},
  }

2010

• ---

  Betz, M. (2010)The Secret Life of Machines – Boundary Objects in Maintenance, Repair and Overhaul

  IN Floréen, P., Krüger, A. & Spasojevic, M. (Eds.), Pervasive Computing: 8th International Conference, Pervasive 2010, Helsinki, Finland, May 17-20, 2010. Proceedings Berlin, Heidelberg doi:10.1007/978-3-642-12654-3_11
  [BibTeX] [Download PDF]

  @incollection{betz_secret_2010,
  address = {Berlin, Heidelberg},
  title = {The {Secret} {Life} of {Machines} – {Boundary} {Objects} in {Maintenance}, {Repair} and {Overhaul}},
  isbn = {978-3-642-12654-3},
  url = {http://dx.doi.org/10.1007/978-3-642-12654-3_11},
  booktitle = {Pervasive {Computing}: 8th {International} {Conference}, {Pervasive} 2010, {Helsinki}, {Finland}, {May} 17-20, 2010. {Proceedings}},
  publisher = {Springer Berlin Heidelberg},
  author = {Betz, Matthias},
  editor = {Floréen, Patrik and Krüger, Antonio and Spasojevic, Mirjana},
  year = {2010},
  doi = {10.1007/978-3-642-12654-3_11},
  keywords = {CSCW, CONTici},
  pages = {174--191},
  }

• ---

  Schwartz, T., Betz, M., Ramirez, L. & Stevens, G. (2010)Sustainable energy practices at work: understanding the role of workers in energy conservation

  Proceedings of the Nordic Conference on Human-Computer Interaction., Pages: 452–462
  [BibTeX] [Download PDF]

  @inproceedings{schwartz_sustainable_2010,
  title = {Sustainable energy practices at work: understanding the role of workers in energy conservation},
  shorttitle = {Sustainable energy practices at work},
  url = {http://dl.acm.org/citation.cfm?id=1868966},
  booktitle = {Proceedings of the {Nordic} {Conference} on {Human}-{Computer} {Interaction}},
  author = {Schwartz, Tobias and Betz, Matthias and Ramirez, Leonardo and Stevens, Gunnar},
  year = {2010},
  keywords = {PRAXLABS},
  pages = {452--462},
  }

• ---

  Schwartz, T., Meurer, J. & Betz, M. (2010)TV as an interactive medium to reflecting Energy consumption in daily life

  Proceedings of the 8th European Conference on Interactive TV and Video (EuroITV 2010). Tampere, Findland
  [BibTeX]

  @inproceedings{schwartz_tv_2010,
  address = {Tampere, Findland},
  title = {{TV} as an interactive medium to reflecting {Energy} consumption in daily life},
  booktitle = {Proceedings of the 8th {European} {Conference} on {Interactive} {TV} and {Video} ({EuroITV} 2010)},
  author = {Schwartz, Tobias and Meurer, Johanna and Betz, Matthias},
  year = {2010},
  }

• ---

  Betz, M. & Schwartz, T. (2010)Soziale Dimensionen von Smart Metering am Arbeitsplatz

  Multikonferenz Wirtschaftsinformatik (MKWI)., Publisher: Universitätsverlag Göttingen, Pages: 341–352
  [BibTeX] [Download PDF]

  @inproceedings{betz_soziale_2010,
  title = {Soziale {Dimensionen} von {Smart} {Metering} am {Arbeitsplatz}},
  url = {http://webdoc.sub.gwdg.de/univerlag/2010/mkwi/01_management_und_methoden/it-resourcenmanagement/03_soziale_dimensionen_von_smart_metering_am_arbeitsplatz.pdf},
  booktitle = {Multikonferenz {Wirtschaftsinformatik} ({MKWI})},
  publisher = {Universitätsverlag Göttingen},
  author = {Betz, Matthias and Schwartz, Tobias},
  editor = {Schumann, Matthias and Kolbe, Lutz M and Breitner, Michael H and Frerichs, Arne},
  year = {2010},
  keywords = {SMARTLIVE},
  pages = {341--352},
  }

• ---

  Ley, B. & Betz, M. (2010)Picnic: Integrating physical artifacts in collaborative settings for context-aware adaptation

  CHI 2010 Workshop Context-Adaptive Interaction for Collaborative Work. Atlanta, USA
  [BibTeX]

  @inproceedings{ley_picnic_2010,
  address = {Atlanta, USA},
  title = {Picnic: {Integrating} physical artifacts in collaborative settings for context-aware adaptation},
  booktitle = {{CHI} 2010 {Workshop} {Context}-{Adaptive} {Interaction} for {Collaborative} {Work}},
  author = {Ley, Benedikt and Betz, Matthias},
  year = {2010},
  keywords = {CSCW, a-paper},
  }

2008

• ---

  Betz, M., Ley, B., Pipek, V. & Wulf, V. (2008)Folksonomies for real things – Tagging objects with RFID as a source for context-awareness

  INFORMATIK 2008, Beherrschbare Systeme – dank Informatik, Band 2, Beiträge der 38. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 8. – 13. September, in München, Deutschland., Publisher: GI, Pages: 789–795
  [BibTeX] [Download PDF]

  @inproceedings{betz_folksonomies_2008,
  series = {{LNI}},
  title = {Folksonomies for real things - {Tagging} objects with {RFID} as a source for context-awareness},
  volume = {134},
  isbn = {978-3-88579-228-4},
  url = {http://subs.emis.de/LNI/Proceedings/Proceedings134/article2184.html},
  booktitle = {{INFORMATIK} 2008, {Beherrschbare} {Systeme} - dank {Informatik}, {Band} 2, {Beiträge} der 38. {Jahrestagung} der {Gesellschaft} für {Informatik} e.{V}. ({GI}), 8. - 13. {September}, in {München}, {Deutschland}},
  publisher = {GI},
  author = {Betz, Matthias and Ley, Benedikt and Pipek, Volkmar and Wulf, Volker},
  editor = {Hegering, Heinz-Gerd and Lehmann, Axel and Ohlbach, Hans Jürgen and Scheideler, Christian},
  year = {2008},
  keywords = {CSCW, CONTici},
  pages = {789--795},
  }

2007

• ---

  Betz, M., Huq, M., Pipek, V., Rohde, M., Stevens, G. & Wulf, V. (2007)Architecture for Adaptable Component Based Mobile Systems: End User Driven Real Life Tagging for Individualized Context-Awareness. Designing for Palpability Workshop at Pervasive 2007

  Fifth International Conference on Pervasive Computing. Toronto, Ontario, Canada
  [BibTeX]

  @inproceedings{betz_architecture_2007,
  address = {Toronto, Ontario, Canada},
  title = {Architecture for {Adaptable} {Component} {Based} {Mobile} {Systems}: {End} {User} {Driven} {Real} {Life} {Tagging} for {Individualized} {Context}-{Awareness}. {Designing} for {Palpability} {Workshop} at {Pervasive} 2007},
  booktitle = {Fifth {International} {Conference} on {Pervasive} {Computing}},
  author = {Betz, Matthias and Huq, Mahmudul and Pipek, Volkmar and Rohde, Markus and Stevens, Gunnar and Wulf, Volker},
  year = {2007},
  }

• ---

  Betz, M., Huq, M., Pipek, V., Rohde, M., Stevens, G., Englert, R. & Wulf, V. (2007)An Architecture for Adaptive and Adaptable Mobile Applications for Physically Handicapped People

  Universal Access in Human Computer Interaction. Coping with Diversity, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007, Held as Part of HCI International 2007, Beijing, China, July 22-27, 2007, Proceedings, P., Publisher: Springer, Pages: 335–344 doi:10.1007/978-3-540-73279-2_37
  [BibTeX] [Download PDF]

  @inproceedings{betz_architecture_2007-1,
  series = {Lecture {Notes} in {Computer} {Science}},
  title = {An {Architecture} for {Adaptive} and {Adaptable} {Mobile} {Applications} for {Physically} {Handicapped} {People}},
  volume = {4554},
  isbn = {978-3-540-73278-5},
  url = {http://dx.doi.org/10.1007/978-3-540-73279-2_37},
  doi = {10.1007/978-3-540-73279-2_37},
  booktitle = {Universal {Access} in {Human} {Computer} {Interaction}. {Coping} with {Diversity}, 4th {International} {Conference} on {Universal} {Access} in {Human}-{Computer} {Interaction}, {UAHCI} 2007, {Held} as {Part} of {HCI} {International} 2007, {Beijing}, {China}, {July} 22-27, 2007, {Proceedings}, {P}},
  publisher = {Springer},
  author = {Betz, Matthias and Huq, Mahmudul and Pipek, Volkmar and Rohde, Markus and Stevens, Gunnar and Englert, Roman and Wulf, Volker},
  editor = {Stephanidis, Constantine},
  year = {2007},
  keywords = {CSCW},
  pages = {335--344},
  }

• ---

  Betz, M. (2007)Serviceorientierte Architektur für nutzerzentriertes, kontextsensitives Kompositions-Management: Entwurf und Implementierung für mobile Applikationen (Diplomarbeit)

  Diplomarbeit
  [BibTeX] [Download PDF]

  @phdthesis{betz_serviceorientierte_2007,
  type = {Diplomarbeit},
  title = {Serviceorientierte {Architektur} für nutzerzentriertes, kontextsensitives {Kompositions}-{Management}: {Entwurf} und {Implementierung} für mobile {Applikationen} ({Diplomarbeit})},
  url = {http://www.wineme.uni-siegen.de/wp-content/uploads/2016/11/da_betz-kompositions-management-2007.pdf},
  author = {Betz, Matthias},
  year = {2007},
  keywords = {Thesis, Diplomarbeit},
  }

2006

• ---

  Betz, M., Hess, J., Pipek, V., Rohde, M., Wulf, V. & Scheidl, S. (2006)End-User Development in Small and Medium Enterprises: Research and development Issues

  Workshop ‚The Next Step: From End-User Programming to End-User Software Engineering‘ at the CHI 2006. Montreal, Canada
  [BibTeX] [Download PDF]

  @inproceedings{betz_end-user_2006,
  address = {Montreal, Canada},
  title = {End-{User} {Development} in {Small} and {Medium} {Enterprises}: {Research} and development {Issues}},
  url = {http://eusesconsortium.org/weuse/},
  booktitle = {Workshop '{The} {Next} {Step}: {From} {End}-{User} {Programming} to {End}-{User} {Software} {Engineering}' at the {CHI} 2006},
  author = {Betz, Matthias and Hess, Jan and Pipek, Volkmar and Rohde, Markus and Wulf, Volker and Scheidl, Stefan},
  year = {2006},
  keywords = {CSCW},
  }

• ---

  Dörner, C., Pipek, V., Betz, M., Hess, J., Rohde, M. & Wulf, V. (2006)End User Development in Small and Medium-Sized Enterprises: Empirical Findings Concerning the Adaptation Process of Software Systems

  Informatik 2006 – Informatik für Menschen, Band 1, Beiträge der 36. Jahrestagung der Gesellschaft für Informatik e.V. (GI). Dresden, Germany, Publisher: GI, Pages: 600
  [BibTeX] [Download PDF]

  @inproceedings{dorner_end_2006,
  address = {Dresden, Germany},
  series = {{LNI}},
  title = {End {User} {Development} in {Small} and {Medium}-{Sized} {Enterprises}: {Empirical} {Findings} {Concerning} the {Adaptation} {Process} of {Software} {Systems}},
  volume = {93},
  isbn = {978-3-88579-187-4},
  url = {http://subs.emis.de/LNI/Proceedings/Proceedings93/article4804.html},
  booktitle = {Informatik 2006 - {Informatik} für {Menschen}, {Band} 1, {Beiträge} der 36. {Jahrestagung} der {Gesellschaft} für {Informatik} e.{V}. ({GI})},
  publisher = {GI},
  author = {Dörner, Christian and Pipek, Volkmar and Betz, Matthias and Hess, Jan and Rohde, Markus and Wulf, Volker},
  editor = {Hochberger, Christian and Liskowsky, Rüdiger},
  year = {2006},
  keywords = {CSCW, EUDISMES},
  pages = {600},
  }