[The stratigraphy and fossil molluscs of the Lower Cretaceous lake deposits of the far Altai Gobi in Mongolia]. [Fossil freshwater molluscs and their significance for palaeolimnology.] Akademiya Nauk SSR Institut Ozerovedeniya. 3-258., Izdatel'stvo 'Nauka' Leningrad 1976., 1976: 3-19. Chapter pagination: 21-50. 43 [Zoological Record Volume 113]