Vialov,O.S. et al. (1987)
Key sections of Oligocene and Eocene Border deposits of the Inner Zone of the Precarpathian Foredeep (Pokutye) [ Opornye Razrezy Pogranichnykh otlozhenii Eotsena i Oligotsena Vnutrennei Zony Predkarpatskogo Progiba (Pokute) ] Paleontologicheskii Sbornik
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