@incollection{
 author = {Niewiadomski, R. and Mancini, M. and Piana, S.},
 title = {Human and virtual agent expressive gesture quality analysis and synthesis},
 booktitle = {Coverbal Synchrony in Human-Machine Interaction},
 editor = {Rojc, M. and Campbell, N.},
 year = {2013},
 pages = {269--292},
 publisher = {CRC Press, Science Publishers (USA)}
}