@inbook {Scherer1980,
	title = {The functions of nonverbal signs in conversation},
	booktitle = {The Social and Psychological Contexts~of~Language},
	year = {1980},
	pages = {225{\textendash}244},
	publisher = {Lawrence Erlbaum},
	organization = {Lawrence Erlbaum},
	address = {Hillsdale. NJ}
}
