@article{PismaZhETF.38.132,
    title = {Appearance of a bound state in the two-body problem and the e expansion},
    author = {Apenko, S. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {38},
    issue = {3},
    pages = {132},
    year = {1983},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22572.shtml},
}