@book{237236,
	author = {Kotusz, Jan and Krappe, Martin},
	title = {Distribution, density and habitat of Cottus poecilopus - Heckel, 1836 - in Lake Hancza - North East Poland - as compared with the situation in the Luzin lakes - North East Germany -},
	note = {Kotusz, J.-University of Wroclaw, Museum of Natural History, ul. Sienkiewicza 21, PL-50-335 Wroclaw}
}