@article{PismaZhETF.46.74,
    title = {Effect of charged-impurity potential on exciton formation in quantum wells},
    author = {Kop'ev, P. S. and Kochereshko, V. P. and Ural'tsev, I. N. and Yakovlev, D. R.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {46},
    issue = {2},
    pages = {74},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18509.shtml},
}