PT Journal AU Gershenzon, EM Gol'tsman, GN Emtsev, VV Mashovets, TV Ptitsyna, NG Ryvkin, SM TI Role of impurities of groups III and V in the formation of defects following γ irradiation of germanium SO JETP Lett. JI JETP Lett. PY 1971 BP 241 VL 14 IS 6 DE Ge; gamma irradiation; defects; impurities ER