Title: Prat︠s︡i miz︠h︡narodnoï konferent︠s︡iï "chetverti vsekhsvi︠a︡tsʹki chytanni︠a︡
Subjects: Astrophysics
Places: Solar system
People: Sergeĭ Konstantinovich Vsekhsvi︠a︡tskiĭ (1905-)