@article{TMF_1970_3_1_a0,
     author = {M. A. Markov and V. P. Frolov},
     title = {Metric of a~closed {Friedman} world perturbed by an~electric charge.
},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {3--17},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1970_3_1_a0/}
}