@article {74,
	title = {A review of the scarce and threatened flies of Great Britain (Part 1)},
	number = {39},
	year = {1991},
	month = {1991},
	pages = {194},
	institution = {Nature Conservancy Council},
	address = {Peterborough},
	isbn = {086139-706-1},
	author = {Falk, S.J.}
}
@article {45,
	title = {Further observations on the prestomal teeth of dung-flies (Dipt., Scathophagidae) with special reference to Neararctic species.},
	journal = {Entomologist{\textquoteright}s monthly Magazine},
	volume = {127},
	year = {1991},
	month = {1991},
	pages = {39-42},
	author = {Nelson, J.M.}
}
