@inbook {Paggio2012,
	title = {Classifying the Feedback Function of Head Movements and Face Expressions},
	booktitle = {Multimodal Corpora: How Should Multimodal Corpora Deal with the Situation?},
	year = {2012},
	note = {<p>Language Resources and Evaluation Conference</p>},
	pages = {34 {\textendash} 38},
	publisher = {European Language Resources Association},
	organization = {European Language Resources Association},
	address = {Luxembourg},
	author = {Paggio, Patrizia and Navarretta, Costanza}
}
