@article{TIMB_2010_18_2_a1,
     author = {P. P. Zabreiko and A. V. Krivko-Krasko},
     title = {The conditions of a local minimum of the functions in several variablesand implicit functions},
     journal = {Trudy Instituta matematiki},
     pages = {11--21},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2010_18_2_a1/}
}