@article{TMF_1978_37_3_a1,
     author = {V. N. Romanov and I. V. Frolov and A. S. Schwarz},
     title = {Spherically symmetric solitons},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {305--318},
     publisher = {mathdoc},
     volume = {37},
     number = {3},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1978_37_3_a1/}
}