@book {42,
	title = {Land Snails of Britain and North-West Europe},
	year = {1979},
	publisher = {Harper Collins Publishers},
	organization = {Harper Collins Publishers},
	address = {Hong Kong},
	author = {Kerney, MP and Cameron, RAD}
}
@book {870,
	title = {Die Landschnecken Nord- und Mitteleuropas},
	year = {1983},
	publisher = {Ein Bestimmungsbuch fur Biologen und Naturfreunde},
	organization = {Ein Bestimmungsbuch fur Biologen und Naturfreunde},
	address = {Berlin.},
	author = {Kerney, MP and Cameron, RAD and Jungbluth, J.H.}
}
@article {564,
	title = {Agriolimacidae (Gastropoda: Pulmonata - A systematic monograph},
	journal = {Annales Zoologici},
	volume = {49},
	year = {2000},
	pages = {347-590},
	author = {Wiktor, A}
}
@book {67,
	title = {Land Snails and Slugs of Russia and Adjacent Countries},
	year = {2009},
	publisher = {Pensoft},
	organization = {Pensoft},
	address = {Sofia},
	author = {Sysoev, A and Schileyko, A}
}
