TY - JOUR AU - N. V. Banichuk AU - V. M. Petrov AU - F. L. Chernous'ko TI - A method of local variations for variational problems with nonadditive functionals JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1969 SP - 548 EP - 557 VL - 9 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1969_9_3_a4/ LA - ru ID - ZVMMF_1969_9_3_a4 ER -