@article {44877,
	title = {Revision of selected North American and Eurasian Late Devonian (Frasnian) species of Cyrtospirifer and Regelia (Brachiopoda)},
	volume = {77},
	year = {2003},
	pages = {267-292},
	publisher = {Journal of Paleontology},
	author = {Ma, Xueping and Day, Jed}
}
