@article{PismaZhETF.30.517,
    title = {Surface conductivity of germanium cleaved in liquid helium},
    author = {Vul, B. M. and Zavaritskaya, E. I. and Sokol, E. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {30},
    issue = {8},
    pages = {517},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20684.shtml},
}