@book {3538,
	title = {The Empidoidea (Diptera) of Fennoscandia and Denmark. III. Genus Empis},
	series = {Fauna Entomologica Scandinavica},
	number = {29},
	year = {1994},
	pages = {192},
	publisher = {E.J. Bril},
	organization = {E.J. Bril},
	address = {Leiden},
	author = {Chv{\'a}la, M.}
}
