PERIODIC-SOLUTIONS TO LINEAR DIFFERENCE SYSTEMS WITH SMALL DIFFERENCE СтатьяROZHKOV V.I., KOROLEV M.F.Doklady Akademii nauk SSSR. Том 237. 1977. С. 35-38
AEROELASTIC STABILITY OF A LAMINATED ROD ON SPRING SUPPORTS СтатьяSMIRNOV A.I., ALIKHASHKIN J.I.Doklady Akademii nauk SSSR. Том 235. 1977. С. 783-785