@book {49353,
	title = {Svenska insekter: en orienterande handbok vid studiet av v{\r a}rt lands insektfauna},
	year = {1922},
	pages = {812},
	publisher = {Norstedt},
	organization = {Norstedt},
	address = {Stockholm},
	author = {Tullgren, A and Wahlgren, Einar}
}
@book {49351,
	title = { Diptera scandinaviae disposita et descripta. (part.)},
	volume = {14},
	year = {1860},
	pages = {6191-6609},
	address = {Lundae},
	author = {Zetterstedt, Johann Vilhelm}
}
