@article{PismaZhETF.45.580,
    title = {Exciton-exciton interaction and absorption bistability in CdS at low optical excitation levels},
    author = {Dneprovskii, V. S. and Klimov, V. I. and Nazvanova, E. V. and Furtichev, A. I.},
    journal = {Письма в ЖЭТФ},
    volume = {45},
    issue = {12},
    pages = {580},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18865.shtml},
}