V. A. Prysiazhniuk, “ Mollusks of the subgenus Planivallonia S c h i l e y k o, 1984 (Mollusca, Pulmonata) from the Neogene deposits of Ukraine, Russia, and Kazakhstan ”, Dopov. Nac. akad. nauk Ukr., no. 2, pp. 75–78, Sep. 2024.