Shotov A.P. , Volkov B.A. , Kutcherenko I.V. , Moiseenko V.N. , Vyatkin K.V. Phase transition in Pb Sn Se induced by the temperature and pressure.(Фазовый переход в Pb Sn Se индуцированный температурой и давлением). Physics of Semiconductors. 14 th Intern. сonf. Edinburgh. 4-8 Sept. 1978. / Ed.B L H Wilson , с. P.449-452 Ginzburg V.L. , Volkov B.A. , Gorbatsevich A.A. , Kopaev Y.V. On the problem of superdiamagnetism. Solid State Commun. , Vol.50,N4 , с. S.339-343 , 01.1984 Volkov B.A. , Svistov A.E. , Davydov D.N. , Chishevskii E.G. Quantum steps in conductance of small size point contracts based on narrow gap semicondactors. Phys.Low-Dim.Struct. , Vol.7 , с. P.1-95 , 01.1995