Matsonashvili B.N. ,     Zasavitskii I.I. ,     Trofimov V.T. Photoconductivity spectrum and kinetics of Pb_1-xSn_xTe/PbTe/BaF_2 multiquantum well structures. Semiconductor Sci. & Technol. , Vol.8,N1S , с. S345-S348 , 01.1993   Kopaev Y.V. ,     Volchkov N.A. ,     Trofimov V.T. ,     Shmelev S.S. ,     Birjulin P.I. ,     Grishechkina S.P. ,     Ignatiev A.S. Single-gated mobility modulation transistor. Semiconductor Sci. & Technol. , Vol.12,N4 , с. P.427-430 , 01.1997   Kopaev Y.V. ,     Volchkov N.A. ,     Trofimov V.T. ,     Birjulin P.I. Single-gated mobility-modulation transistor. Semiconductor Sci. & Technol. , Vol.14 , с. P.699-704 , 01.1999