@article{PismaZhETF.57.225,
    title = {Role of oxygen adsorption in the insulator-metal transition at a cleaved germanium surface},
    author = {Zavaritskaya, E. I.},
    journal = {Письма в ЖЭТФ},
    volume = {57},
    issue = {4},
    pages = {225},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17767.shtml},
}