@article{PismaZhETF.14.348,
    title = {Activation Energy of Jump Conductivity},
    author = {Shklovskii, B. I. and Efros, A. L. and Yanchev, I. Ya.},
    journal = {Письма в ЖЭТФ},
    volume = {14},
    issue = {5},
    pages = {348},
    year = {1971},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24902.shtml},
}