Doctor of Sciences

Doctor of Sciences (Russian: доктор наук, IPA: [ˈdoktər nɐˈuk], abbreviated д-р наук or д. н.; Ukrainian: доктор наук; Bulgarian: доктор на науките; Belarusian: доктар навук) is a higher doctoral degree in Russian Empire, Soviet Union and many post-Soviet countries, which may be earned after the Candidate of Sciences.