S. Kalkowski, C. Schulze, A. Dengel, and D. Borth. Proceedings of the 2015 Workshop on Community-Organized Multimodal Mining: Opportunities for Novel Solutions (MMCommons '15), Brisbane, Australia, page 25--30. New York, ACM, (2015)
R. Palacio, C. Acosta, A. Morán, and J. Cortez. Proceedings of the 4th Mexican Conference on Human-Computer Interaction, page 43--46. New York, NY, USA, ACM, (2012)