1. v. Z. PARTON and B. A. KUDRIAVCEV: in 'Electromagnetic elasticity of piezoelectricity and conductor', 419–453; 1988, Moscow, Publishing Company of Science.
2. V. M. FINKELJ: in 'Physical foundation of prevent from destroy-ing', 6–12; 1977, Moscow, Publishing Company of Metallurgy.
3. S. A. AMBARCVMIAN: in 'Magnet-elasticity of sheet and shell', 150–160; 1977, Moscow, Publishing Company of Science.