Popov, E.V. & Birukov, A.V. (1999)
On the records of sawfishes's teeth (Batomorphi: Sclerorhynchidae) from the Upper Cretaceous of Lower Volga River Basin [Abstract]. “Geological Sciences – 99”: Abstracts of the scientific interdepartmental conference. Saratov: "College" Publishing, P. 55–56. [In Russian]
Popov, E.V. & Birukov, A.V. (1999)
Status of studying and present tasks of research of the elasmobranchian fauna (Chondrychthyes) from the Cenomanian deposits of the Volga River Bassin [Abstract]. Materials of the International "Lomonosov" Conference of students and post graduate students on fundamental sciences, Moscow: Moscow State University Publishing, Vol. 3. P. 111–112. [In Russian]