%0 Journal Article %A B. N. Delone %T Proof of the fundamental theorem in the theory of stereohedra %J Doklady Akademii Nauk %D 1961 %P 1270-1272 %V 138 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_138_6_a4/ %G ru %F DAN_1961_138_6_a4