Template:Gulyaev & Ippolitov, 2017
- Gulyaev, D.B. & Ippolitov, A. P. 2017. New data on the marine Lower Bathonian of Central Russia (Penza region). Jurassic System of Russia: Problems of stratigraphy and paleogeography. Seventh All-Russian meeting. September 18-22, 2017, Moscow. Scientific materials. Moscow: GIN RAS. pp. 42–46.<a name="_GoBack"></a> PDF