@article{PismaZhETF.15.734,
    title = {The "Quasi-eikonal" Approximation},
    author = {Ter-Martirosyan, K. A.},
    journal = {Письма в ЖЭТФ},
    volume = {15},
    issue = {12},
    pages = {734},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26706.shtml},
}