Roberto I. González-Ibáñez, Chirag Shah, Natalia Córdova-Rubio. Smile! Studying expressivity of happiness as a synergic factor in collaborative information seeking. In Bridging the Gulf: Communication and Information in Society, Technology, and Work - Proceedings of the 74th ASIS&T Annual Meeting, ASIST 2011, New Orleans, LA, USA, October 9-12, 2011. Volume 48 of Proceedings of the Association for Information Science and Technology, pages 1-10, Wiley, 2011. [doi]