HIGHER-ORDER CONDITIONS IN ABNORMAL EXTREMAL PROBLEMS WITH EQUALITY-TYPE RESTRICTIONS Статья ARUTYUNOV A.V. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Том 315. 1990. С. 521-525
ON THE THEORY OF SQUARE MAPPINGS IN BANACH-SPACES Статья ARUTYUNOV A.V. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Том 314. 1990. С. 1290-1292