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Sergeeva, M. T. (1958). Pro faunu peletsypod nyzhnʹoho ta nyzhnʹoyi chastyny serednʹoho karbonu Donetsʹkoho baseynu [On the pelecypod fauna of the Lower and Lower Middle Carboniferous of the Donetsk Basin]. Heolohichnyy Zhurnal. 18(3): 56-68.
Sergeeva, M. T. (1958). Pro faunu peletsypod nyzhnʹoho ta nyzhnʹoyi chastyny serednʹoho karbonu Donetsʹkoho baseynu [On the pelecypod fauna of the Lower and Lower Middle Carboniferous of the Donetsk Basin]. Heolohichnyy Zhurnal. 18(3): 56-68.