@article{PismaZhETF.25.195,
    title = {Phase transitions on the surfaces of germanium and silicon},
    author = {Ol'shanetskii, B. Z. and Repinskii, S. M. and Shklyaev, A. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {25},
    issue = {4},
    pages = {195},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21109.shtml},
}