@article {Hall2005,
	title = {Nonverbal behavior and the vertical dimension of social relations: A meta-analysis},
	journal = {Psychological Bulletin},
	volume = {131},
	number = {6},
	year = {2005},
	pages = {898{\textendash}924},
	author = {Hall, Judith A and Erik J. Coats and Lavonia Smith LeBeau.}
}
@inbook {Hess1999,
	title = {Mimicry: Fact and fiction},
	booktitle = {The Social Context of Nonverbal Behavior},
	year = {1999},
	pages = {213{\textendash}241},
	publisher = {Cambridge University Press},
	organization = {Cambridge University Press},
	address = {New York},
	author = {Hess, Ursula and Pierre Philippot and Sylvie Blairy},
	editor = {Pierre Philippot and Robert S. Feldman and Erik J. Coats}
}
