@article{nie2013b,
author = {R. Niewiadomski and M. Mancini and S. Piana},
title = {Human and Virtual Agent Expressive Gesture Quality Analysis and Synthesis},
booktitle = {Coverbal Synchrony in Human-Machine Interaction},
publisher = {CRC Press},
year = {2013},
pages = {269.-292},
url = {http://books.google.it/books?hl=en&lr=&id=2UbBAQAAQBAJ&oi=fnd&pg=PA269&dq=info:2Mpcy2pW83sJ:scholar.google.com&ots=W5D-WzTVSM&sig=ewlCXP3NIgxE84LGi3ZOm6Z95UA&redir_esc=y#v=onepage&q&f=false},
}