@article{IZKAB_2016_4_a2, author = {V. Ch. Kudaev}, title = {Ranks of extrema and structural optimization }, journal = {News of the Kabardin-Balkar scientific center of RAS}, pages = {15--24}, publisher = {mathdoc}, number = {4}, year = {2016}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IZKAB_2016_4_a2/} }