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Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI
Explicit referencing in learning chats
The learning net - an interactive visualization of shared knowledge for cooperative learning
Integrating cooperative learning into the didactics approach of L3
Evaluating distributed computer-supported cooperative learning (D-CSCL): A framework and some data
Negotiating about shared knowledge in a cooperative learning environment