@article{PismaZhETF.20.329,
    title = {Possibility of existence of electronic sound waves in superconductors},
    author = {Aronov, A. G. and Gurevich, V. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {5},
    pages = {329},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27265.shtml},
}