Groupware: Design, Implementation, and Use 10th International Workshop, CRIWG 2004, San Carlos, Costa Rica, September 5-9, 2004, Proceedings - Vreede, Gert-Jan de; Vreede, Gert-Jan de; Guerrero, Luis A.; Guerrero, Luis A.; Marín Raventós, Gabriela; Marín Raventós, Gabriela (Springer Berlin Heidelberg : Imprint: Springer, 2004)