@article{DAN_1992_326_6_a15,
     author = {V. D. Zakharov and N. P. Konopleva and O. V. Savushkin},
     title = {On the nonuniqueness of the spherically symmetric space-time model},
     journal = {Doklady Akademii Nauk},
     pages = {1002--1006},
     publisher = {mathdoc},
     volume = {326},
     number = {6},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_326_6_a15/}
}