Zakharov et al. 2022

Zakharov Y.D., Kuznetsov A.B., Seltser V.B., Gavrilova A.A., Stativko V.S., Smyshlyaeva O.P., Kirienko A.P., Grigorev V.E. A ⁸⁷Sr/⁸⁶Sr, δ¹⁸O and δ¹³C record of Turonian-Santonian belemnites from lower Volga region of the East European Platform: Stratigraphic significance and palaeoenvironmental reconstructions // Geobios, 2022, V. 74. P. 77-94.