@article{DAN_1981_256_1_a12,
     author = {Yu. P. Vyblyi and O. S. Ivanitskaya},
     title = {Gauging of electromagnetic orientation in general relativity},
     journal = {Doklady Akademii Nauk},
     pages = {54--57},
     publisher = {mathdoc},
     volume = {256},
     number = {1},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_256_1_a12/}
}