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@article{DAN_1990_310_2_a0, author = {I. L. Averbakh}, title = {Saddle points of the {Lagrange} function of an $m$-dimensional}, journal = {Doklady Akademii Nauk}, pages = {265--267}, publisher = {mathdoc}, volume = {310}, number = {2}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_310_2_a0/} }
I. L. Averbakh. Saddle points of the Lagrange function of an $m$-dimensional. Doklady Akademii Nauk, Tome 310 (1990) no. 2, pp. 265-267. http://geodesic.mathdoc.fr/item/DAN_1990_310_2_a0/