@article{DAN_1968_181_1_a13,
     author = {Yu. A. Romanov},
     title = {A possibility {\cyro} generalizing gravitational field equations},
     journal = {Doklady Akademii Nauk},
     pages = {53--55},
     publisher = {mathdoc},
     volume = {181},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_181_1_a13/}
}