@article{DAN_1979_247_3_a19,
     author = {V. A. Pelykh},
     title = {Correctness of the {Country} problem statement for a system of {Einstein} equations, coordinate conditions and the theory of reference systems},
     journal = {Doklady Akademii Nauk},
     pages = {590--593},
     publisher = {mathdoc},
     volume = {247},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_247_3_a19/}
}