@article{PismaZhETF.54.405,
    title = {Impurity - assisted tunneling in a quantum ballistic microconstriction},
    author = {Levinson, Y. B. and Lubin, M. I. and Sukhorukov, E. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {54},
    issue = {7},
    pages = {405},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_3877.shtml},
}