@conference {17489,
	title = {Zonitidae (Gastropoda Terrestria) de la Macedoine Orientale et de la thrace},
	booktitle = {4th International Congress on zoogeography and ecology of Greece and adjacent regions - Kammena Vourla , April 1987},
	year = {1987},
	author = {Riedel, A.}
}
