Klenina 1984. [Brachiopods and biostratigraphy of Middle and Upper Ordovician of the Chingiz-Tarbagataj large anticline.] Bandaletov, S.M.[Ed]. [Brachiopods and biostratigraphy of Middle and Upper Ordovician of the Chingiz Range.], Nauka, Alma Ata, 1984: 6-125. Chapter pagination: 6-125