@article{MZM_2021_109_4_a14,
     author = {V. A. Krasnov},
     title = {A {Trick} for {Calculating} {Volumes} of {Non-Euclidean} {Polyhedra}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {631--635},
     publisher = {mathdoc},
     volume = {109},
     number = {4},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2021_109_4_a14/}
}