@article{CMFD_2013_51_a4,
     author = {V. A. Krasnov},
     title = {On the volume of hyperbolic octahedra with nontrivial symmetry},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {74--86},
     publisher = {mathdoc},
     volume = {51},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2013_51_a4/}
}