@book{767,
	author = {Koukidis, Spiros and Koukidis, Helene},
	title = {Station B2 Kursbuch - Vorbereitung zur Prüfung Zertifikat B2 },
	publisher = {Praxis-Verlag Athens, },
	year = {2007},
	series = {Station},
	address = {Greece :},
	edition = {7.Auflage 2013}
}