@article{TMF_1990_85_2_a12,
     author = {S. N. Sokolov},
     title = {Energy-momentum tensor of~the gravitational field of~material spheres},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {313--320},
     year = {1990},
     volume = {85},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_85_2_a12/}
}