@article{CMFD_2016_61_a3,
     author = {V. A. Krasnov and E. Sh. Khisyametdinova},
     title = {On the volume formula for a~hyperbolic octahedron with $\mathrm{mm2}$-symmetry},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {103--114},
     publisher = {mathdoc},
     volume = {61},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2016_61_a3/}
}