%0 Journal Article %A L. V. Kapitanski %A O. A. Ladyzhenskaya %T On Coleman's principle for finding the stationary points of quadratic functionals %J Doklady Akademii Nauk %D 1983 %P 529-532 %V 270 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_270_3_a3/ %G ru %F DAN_1983_270_3_a3