References
British Sulphur Corporation Limited, 1979, World survey of potash resources (3d ed.): London, British Sulphur Corporation Limited, 138 p.
Commission for the Geological Map of the World, 1973a, Carte metallogenique de l’Europe; Liste de gites mineraux, feuille 3 [Metallogenic map of Europe; list of mineral deposits, sheet 3]; Europe NW (PERM): Bureau de Recherches Geologiques et Minieres and United Nations Educational Scientific and Cultural Organization, 8 p.
Komissarova, I.N., 1981, Vydeleniye kaliyenosnykh zon v predelakh Prikaspiyskoy vpadiny na osnove paleotektonicheskikh dannykh [Evolution of the potash-bearing zone in the vicinity of the Pricaspian Depression on the basis of paleotectonic data], in Yanshin, A.L., and Zharkov, M.A., eds., Stroyeniye i usloviya formirovaniya mestorozhdeniy kaliynykh soley [The structure and formation conditions of potash salt deposits]: Novosibirsk, USSR, Izd. Nauka, Sibirsk. Otdel., p. 126-133.
Zharkov, M.A., 1981, Nizhnepermskaya galogennnaya formatsiia Severnogo Prikaspiia [Lower Permian salt formation in the northern Pricaspian]: Rostov on Don, Rostov University Publishing House, 397 p.