@article{PismaZhETF.33.214,
    title = {Gravitational distortions in neutron-optical systems and their reduction by means of nonuniform magnetic field},
    author = {Skachkova, O. S. and Frank, A. I.},
    journal = {Письма в ЖЭТФ},
    volume = {33},
    issue = {4},
    pages = {214},
    year = {1981},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22990.shtml},
}