Voir la notice de l'article provenant de la source Math-Net.Ru
[1] Ioffe A. D., Tikhomirov V. M., Teoriya ekstremalnykh zadach, Nauka, M., 1974
[2] Bliss G. A., Lektsii po variatsionnomu ischisleniyu, Inostrannaya literatura, M., 1950
[3] Avakov E. R., “Usloviya ekstremuma dlya gladkikh zadach s ogranicheniyami tipa ravenstv”, Zh. vychisl. matem. i matem. fiz., 25:5 (1985), 680–693 | MR | Zbl
[4] Avakov E. R., “Neobkhodimye usloviya ekstremuma dlya gladkikh anormalnykh zadach s ogranicheniyami tipa ravenstv i neravenstv”, Matem. zametki, 45:6 (1989), 3–11
[5] Avakov E. R., “Neobkhodimye usloviya pervogo poryadka dlya anormalnykh zadach variatsionnogo ischisleniya”, Obykn. diff. uravneniya, 26:5 (1990), 739–745 | MR
[6] Chaplygin S. A., Issledovaniya po dinamike negolonomnykh sistem, GITTL, M.–L., 1949
[7] Kozlov V. V., “Dinamika sistem s neintegriruemymi svyazyami”, Vestn. Mosk. un-ta. Ser. 1. Matem., mekh., 1982, no. 3, 92–100
[8] Kozlov V. V., “Dinamika sistem s neintegriruemymi svyazyami”, Vestn. Mosk. un-ta. Ser. 1. Matem., mekh., 1982, no. 4, 70–76
[9] Kozlov V. V., “Dinamika sistem s neintegriruemymi svyazyami”, Vestn. Mosk. un-ta. Ser. 1. Matem., mekh., 1983, no. 3, 102–111