@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}
}
@inbook {Giles1979,
	title = {Accommodation theory : Optimal levels of convergence},
	booktitle = {Language and Social Psychology},
	year = {1979},
	pages = {45{\textendash}65},
	publisher = {Blackwell},
	organization = {Blackwell},
	address = {Oxford}
}
@inbook {Bourhis1979,
	title = {Psycholinguistic distinctiveness : Language divergence in Belgium},
	booktitle = {Language and Social Psychology},
	year = {1979},
	pages = {158{\textendash}185},
	publisher = {Blackwell},
	organization = {Blackwell},
	address = {Oxford}
}
