@book {Quenstedt1881,
	title = {Petrefactenkunde Deutschlands (Sechster Band) R{\"o}hren- und Sternkorallen},
	year = {1881},
	pages = {1093},
	publisher = {Fues{\textquoteright}s Verlag},
	organization = {Fues{\textquoteright}s Verlag},
	address = {Leipzip},
	keywords = {RCBS, SDC, TIP},
	url = {http://archive.org/details/petrefactenkunde7881quen},
	author = {Quenstedt, Friedrich August}
}
