@article{DVMG_2013_13_1_a11,
     author = {L. N. Romakina},
     title = {The theorem of the area of a rectangular trihedral of the hyperbolic plane of positive curvature},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {127--147},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2013_13_1_a11/}
}