1. Assessing teaching presence in computer conferencing context;Anderson;Journal of Asynchronous Learning Networks,2001
2. Communication in a web-based conferencing system: the quality of computer mediated interactions;Angeli;British Journal of Educational Technology,2003
3. Facilitating computer conferencing: recommendations from the field;Berge;Educational Technology,1995
4. Asynchronous web discussions in teacher training courses: promoting collaborative learning or not?;Biesenbach-Lucas;AACE Journal,2004