@article{TRSPY_1992_193_a24,
     author = {V. S. Makarov},
     title = {On the fundamental polyhedron of a~discrete group of motions of {Lobachevsky} space, its combinatorics and deformation},
     journal = {Informatics and Automation},
     pages = {132--136},
     publisher = {mathdoc},
     volume = {193},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1992_193_a24/}
}