K. Bergmann, M. Rull, and B. Lugrin. 4th International Workshop on Multimodal Analyses Enabling Artificial Agents in Human-Machine Interaction, page 26-32. ACM, (2018)
M. del Aguila, S. Vicente, L. del Castillo, and M. Sierra. Medicina clínica, 129 (8):
299-302(September 2007)4362<m:linebreak></m:linebreak>PUBM: Print; JID: 0376377; ppublish;<m:linebreak></m:linebreak>Protocol.