@article{PismaZhETF.42.68,
    title = {Impurities and electron-electron interaction in the quantum Hall effect},
    author = {Pokrovskii, V. L. and Talapov, A. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {42},
    issue = {2},
    pages = {68},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21542.shtml},
}