The Russian theoretical physicists Lev Landau (ITEP considers themselves in the tradition of the Landau school) and Isaak Yakovlevich Pomeranchuk, who led a seminar here from the 1950s, were of particular importance. The well-known textbook on quantum electrodynamics by Aleksander Akhiezer and Vladimir Berestetsky was created at the institute in 1953. The ITEP achieved success for example with scientists such as Mikhail Shifman, Boris Ioffe [ de ], Arkady Vainshtein, Mikhail Voloshin, Victor Novikov and Valentin Ivanovich Zakharov [ de ] in quantum chromodynamics in the 1980s. Other theorists were Vadim Knizhnik, Alexei Morozov, Igor Krichever and Sergei Gukov in the field of string theory, quantum field theory and mathematical physics, Alexander Dolgov in cosmology, Igor Kobzarev [ de ], Michael Marinov [ de ]. Other important theoretical physicists at the institute were Karen Ter-Martirosian and Lev Okun, both of whom were responsible for the selection of scientists during the Soviet Union, which at the time amounted to a strict "screening".