@article{INTO_1999_64_a4,
     author = {A. A. Davydov and V. M. Zakalyukin},
     title = {The coincidence of generic singularities of solutions of extremal problems with constraints},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {118--143},
     publisher = {mathdoc},
     volume = {64},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_1999_64_a4/}
}