@article{PismaZhETF.30.32,
    title = {L-A pair of a system of coupled equations of the gravitational and electromagnetic fields},
    author = {Belinskii, V. A.},
    journal = {Письма в ЖЭТФ},
    volume = {30},
    issue = {1},
    pages = {32},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20575.shtml},
}