%0 Journal Article %A A. S. Matveev %T Lagrange duality in nonconvex optimization theory and modifications of the Toeplitz--Hausdorff theorem %J Algebra i analiz %D 1995 %P 143-181 %V 7 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_1995_7_5_a3/ %G ru %F AA_1995_7_5_a3