@article{PismaZhETF.26.193,
    title = {Summation of asymptotic series in quantum field theory},
    author = {Popov, V. S. and Eletskii, V. L. and Turbiner, A. V.},
    journal = {Письма в ЖЭТФ},
    volume = {26},
    issue = {3},
    pages = {193},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20854.shtml},
}