@book{68968,
	author = {Freek Rhebergen, and Botting, J. P.},
	title = {A new Silurian (Llandovery, Telychian) sponge assemblage from Gotland, Sweden /},
	publisher = {Wiley Blackwell,},
	year = {2014.},
	series = {Fossils and Strata ;},
	address = {[Place of publication not identified] :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10943472}
}