Title: Sostoi︠a︡nie izuchennosti stratigrafii pliot︠s︡enovykh i pleĭstot︠s︡enovykh otlozheniĭ Volgo-Uralʹskoĭ oblasti i zadachi dalʹneĭshikh issledovaniĭ
Subjects: Stratigraphic Geology, Geology