Title: Diatomovye vodorosli kak bioindikatory sovremennogo sostoi︠a︡nii︠a︡ okruzhai︠u︡shcheĭ sredy i ikh rolʹ v paleoėkologii i biostratigrafii : morfologii︠a︡, sistematika, floristika, ėkologii︠a︡, paleografii︠a︡, biostratigrafii︠a︡
Subjects: Diatoms, Congresses, Environmental indicators, Stratigraphic Geology, Paleoecology, Stratigraphic Paleontology