Authors Year Title
Voinova 1934 Nekotorye ammonei iz Baigendzhinskogo gorizonta Artinskogo yarusa Yuzhnogo Urala. [Some ammonites from the Baigendja horizon of the Artinskian, South Ural.]
Trudy Vsesoyuzn.geologo-razvedochnogo ob"ed., vypusk 352: 1-60, text-fig.1-22, pl.1-5, 4 tab., Leningrad, Moskva, Novosibirsk.