	Authors	Year	Title
	Bogoslovskaya	1997	Permian Ammonoids from the Pai-Khoy Range and Vaigach Island. [Ammonoidei iz Permskikh otlozhenii Pai-Khoia i ostrova Vaigan.] Paleontological Journal 31 (6), 1997, 588-594 [Paleont Zh. 1997 (6): 23-38]. Moskva.