TY - JOUR AU - V. P. Belov TI - Groups of spacetime transformations and symmetries of four-dimensional spacetime.~II JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1994 SP - 136 EP - 157 VL - 101 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1994_101_1_a11/ LA - ru ID - TMF_1994_101_1_a11 ER -