@article{RM_1978_33_6_a4,
     author = {E. S. Levitin and A. A. Milyutin and N. P. Osmolovskii},
     title = {Conditions of~high order for~a~local minimum in~problems with constraints},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {97--168},
     publisher = {mathdoc},
     volume = {33},
     number = {6},
     year = {1978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1978_33_6_a4/}
}