Vozrast i rasprostranenie maksimalʹnogo oledeneni︠i︡a Vostochnoĭ Evropy = Age and spreading of the maximum glaciation in East Europe : [Sb. stateĭ - Gerasimov, I. P. (Innokentiĭ Petrovich), 1905-; Velichko, Andreĭ Alekseevich (Izd-vo "Nauka,", 1980)