Smith, M., Cadiz, J. & Burkhalter, B. (2000): Conversation Trees and Threaded Chats. In: Proceedings of the ACM 2000 Conference on Computer-Supported Cooperative Work, S 97-105, Philadelphia, USA, http://www.research.microsoft.com/research/coet/Communities/T-Chat/CSCW2000/paper.pdf (27.04.2003)
