Acting Dmitry Kaledin Acting DAU. Degeneration Head of the Theoretical Department 2020 DAU. New Man Head of the Mathematical Physics Laboratory, Deputy Director of the Institute 2020 DAU. Brave People Head of the Mathematical Physics Laboratory, Deputy Director of the Institute (1953-1956); Director of the Institute (1956-1960) 2020 DAU. String Theory Kaledin 2020 Agent-readable