@article{TMF_1983_56_3_a15,
     author = {N. A. Gromov},
     title = {Casimir operators of the groups of motion of spaces of constant curvature},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {480},
     publisher = {mathdoc},
     volume = {56},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1983_56_3_a15/}
}