1. Bodart, F., Hennebert, A.M., Leheureux, J.-M., Provot, I., Sacré, B., Vanderdonckt, J., 1990. The TRIDENT project (Tools foR an Interactive Development ENvironmenT). Working Conference IFIP WG 2.7, Namur.
2. BSCW, 1995–2009, Fraunhofer FIT and OrbiTeam Software GmbH. .
3. Using social networking and semantic web technology in software engineering – use cases, patterns, and a case study;Dietrich;Journal of Systems and Software,2008
4. Durán, A., 2000. Un Entorno Metodológico de Ingeniería de Requisitos para Sistemas de Información. Ph.D. Thesis (in Spanish), University of Sevilla.
5. Requirements Engineering in Cooperative Systems. Requirements Engineering for Sociotechnical Systems;Garrido,2005