@article{TMF_1970_2_3_a0,
     author = {R. A. Asanov},
     title = {Example of a~closed world with massless scalar field sources},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {289--291},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1970_2_3_a0/}
}