@article{PismaZhETF.23.524,
    title = {Surface electronic states above a helium film},
    author = {Volodin, A. P. and Khaikin, M. S. and Edel'man, V. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {23},
    issue = {9},
    pages = {524},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27567.shtml},
}