@book{28091,
	author = {Laursen, Dan.},
	title = {Cyrtograptusskifrene paa Bornholm.},
	publisher = {I kommission hos C.A. Reitzel,},
	year = {1940.},
	address = {København :},
	note = {Vol. 2, Læsaa, published in nr. 70 of the series (1943).}
}