@article{ZVMMF_2006_46_8_a2,
     author = {A. V. Arutyunov and D. Yu. Karamzin},
     title = {Necessary optimality conditions in an abnormal optimization problem with equality constraints},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1363--1368},
     year = {2006},
     volume = {46},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2006_46_8_a2/}
}