@article{PismaZhETF.5.442,
    title = {Experimental Investigation of the Surface Conductivity of Niobium},
    author = {Akhmedov, S. Sh. and Karasik, V. R.},
    journal = {Письма в ЖЭТФ},
    volume = {5},
    issue = {12},
    pages = {442},
    year = {1967},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25226.shtml},
}