@book{28433,
	author = {Zwerger, R. von},
	title = {Der tiefere Untergrund des westlichen Peribaltikums;},
	publisher = {Akademie-Verlag,},
	year = {1948.},
	series = {Abhandlungen der Geologischen Landesanstalt, Berlin, n.F.,},
	address = {Berlin,}
}