@book{28841,
	author = {Kündig, Ernst. and Quervain, Francis de, and Schweizerische Geotechnische Kommission.},
	title = {Fundstellen mineralischer Rohstoffe in der Schweiz,},
	publisher = {Kümmerly & Frey,},
	year = {1953.},
	address = {Bern,},
	edition = {2. ausg.}
}