@article{PismaZhETF.41.343,
    title = {Quasi-2D and free excitons in quantum-well structures},
    author = {Vasil'ev, A. M. and Ledentsov, N. N. and Kop'ev, P. S. and Mel'tser, B. Ya. and Ural'tsev, I. N. and Yakovlev, D. R.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {41},
    issue = {8},
    pages = {343},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22358.shtml},
}