%0 Journal Article %A L. N. Romakina %T The theorem of the area of a rectangular trihedral of the hyperbolic plane of positive curvature %J Dalʹnevostočnyj matematičeskij žurnal %D 2013 %P 127-147 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DVMG_2013_13_1_a11/ %G ru %F DVMG_2013_13_1_a11