@article{ZVMMF_1965_5_3_a1,
     author = {A. Ya. Dubovitskii and A. A. Milyutin},
     title = {Extremum problems in the presence of restrictions},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {395--453},
     publisher = {mathdoc},
     volume = {5},
     number = {3},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1965_5_3_a1/}
}