Jean-Claude Martin Stéphanie Buisine Guillaume Pitel Niels Ole Bernsen Fusion of children's speech and 2D gestures when conversing with 3D characters. 3596-3624 2006 86 Signal Processing 12 http://dx.doi.org/10.1016/j.sigpro.2006.02.040 db/journals/sigpro/sigpro86.html#MartinBPB06