@book{28081,
	author = {Bugge, Jens A. W.},
	title = {Geological and petrographical investigations in the Kongsberg-Bamble formation,},
	publisher = {I kommisjon hos H. Aschehoug & co.,},
	year = {1943.},
	series = {Norway. Geologiske undersøkelse.  [Skrifter]},
	address = {Oslo,},
	note = {At head of title: Norges geologiske undersøkelse.}
}