@article{TM_2007_256_a0,
     author = {E. R. Avakov and A. V. Arutyunov and A. F. Izmailov},
     title = {Necessary {Conditions} for an {Extremum} in a {Mathematical} {Programming} {Problem}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {6--30},
     publisher = {mathdoc},
     volume = {256},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2007_256_a0/}
}