EQUATIONS OF STATE FOR STRONGLY ANHARMONIC CRYSTALS WITH A COMPLEX LATTICE Статья Zubov V.I., Suleiman S.Sh. Soviet Physics Journal. Kluwer Academic Publishers-Plenum Publishers. Том 22. 1979. С. 1157-1160
PARTICLE STABILITY IN NONLINEAR SCALAR FIELD THEORY Статья Kumar A. Soviet Physics Journal. Kluwer Academic Publishers-Plenum Publishers. Том 22. 1979. С. 948-951