This article says "Доктор исторических наук, профессор (1949)", but BSE says "Доктор ист. наук (1959)" and "проф. Lенинgр. ун-та (с 1949)." To me it seems strange to be professor first, and PhD later. Perhaps someone should check more sources. --LA2 (обс) 13:17, 27 августа 2014 (UTC)