@article{PismaZhETF.68.847,
    title = {Phonon relaxation of subgap levels in superconducting quantum point contacts},
    author = {Ivanov, D. A. and Feigel'man, M. V.},
    journal = {Письма в ЖЭТФ},
    volume = {68},
    issue = {11},
    pages = {847},
    year = {1998},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_14812.shtml},
}