@article{TMF_1981_46_3_a7,
     author = {R. M. Muradyan},
     title = {On discrete subgroups of the three-dimensional rotation group},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {335--347},
     publisher = {mathdoc},
     volume = {46},
     number = {3},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1981_46_3_a7/}
}