Doktor nauk
Mikhail Vladimirovich Volkenshtein (Михаи́л Влади́мирович Волькенште́йн) (October 23, 1912 – February 18, 1992) was a notable Russian biophysicist, Corresponding Member of the Russian Academy of Sciences, Professor and Doktor nauk. In his publications in English his name is written as M. V. Volkenstein.