SPECTRAL PROPERTIES OF OPERATORS IN THE PROBLEM OF THE COMPRESSIBLE FLUID OSCILLATION IN ROTATING VESSELS Статья PAL P.K. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Том 281. 1985. С. 529-534
THE DIFFERENTIAL GEOMETRY OF BOL LOOPS Статья SABININ L.V., MIKHEEV P.O. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Том 281. 1985. С. 1055-1057