@article{SMZ_2006__47_4_54757,
     author = {Mednykh, A.D. and Pashkevich, M.G.},
     title = {Elementary formulas for a hyperbolic tetrahedron.},
     journal = {Sibirskij Matematicheskij Zhurnal},
     pages = {831},
     publisher = {mathdoc},
     volume = {47},
     number = {4},
     year = {2006},
     zbl = {1150.51305},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/SMZ_2006__47_4_54757/}
}