%0 Journal Article %A M. I. Sumin %T Lagrange principle and its regularization as a theoretical basis of stable solving optimal control and inverse problems %J Vestnik rossijskih universitetov. Matematika %D 2021 %P 151-171 %V 26 %N 134 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTAMU_2021_26_134_a4/ %G ru %F VTAMU_2021_26_134_a4