@article{PismaZhETF.28.140,
    title = {WKB method at Z > 137},
    author = {Mur, V. D. and Popov, V. S. and Voskresenskii, D. N.},
    journal = {Письма в ЖЭТФ},
    volume = {28},
    issue = {3},
    pages = {140},
    year = {1978},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24106.shtml},
}