Douglas G. Ribeiro, Celso S. Kurashima, Adilson E. Guelfi, and Marcelo K. Zuffo. 2012. Evaluation of theora and speex performance in IP videoconferencing. In Proceedings of the 18th Brazilian Symposium on Multimedia and the Web, outubro 15, 2012, São Paulo, Brasil. SBC, Porto Alegre, Brasil, 135-138.