%0 Journal Article %A I. K. Zhuk %T Fundamental tetrahedra in Euclidean and Lobachevsky spaces %J Doklady Akademii Nauk %D 1983 %P 35-37 %V 270 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_270_1_a7/ %G ru %F DAN_1983_270_1_a7