	Authors	Year	Title
	Zakharov, Vavilov & Popov	1987	Mikrostruktura rakoviny pozdnepaleozoyskikh i triasovykh ammonoidey Boreal'noy oblasti. In: Problemy biostratigrafii permi i triasa Vostoka SSSR; DVNTs AN SSSR, 1987: 105-108, pl.19-24; Vladivostok.