M. Ames, and M. Naaman. CHI '07: Proceedings of the SIGCHI conference on Human factors in computing systems, page 971--980. New York, NY, USA, ACM, (2007)
A. Amin, S. Townsend, J. Ossenbruggen, and L. Hardman. Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part I, page 736--749. Berlin, Heidelberg, Springer-Verlag, (2009)
O. Arazy, and O. Nov. CSCW '10: Proceedings of the 2010 ACM conference on Computer supported cooperative work, page 233--236. New York, NY, USA, ACM, (2010)
F. Aschoff, V. Schaer, and G. Schwabe. Proceedings of the 5th International Conference on Communities and Technologies, page 69--78. New York, NY, USA, ACM, (2011)