%0 Journal Article %A V. T. Fomenko %T The rigidity of a Darboux surface with boundary in a Riemannian space %J Doklady Akademii Nauk %D 1968 %P 1346-1349 %V 181 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_181_6_a12/ %G ru %F DAN_1968_181_6_a12