@article{TMF_1997_111_1_a2,
     author = {S. E. Stepanov},
     title = {On group-theoretic approach to study {Einstein's} and {Maxwell's} equations},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {32--43},
     publisher = {mathdoc},
     volume = {111},
     number = {1},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1997_111_1_a2/}
}