@article{PismaZhETF.20.566,
    title = {Singularities of absorption and luminescence bands of free many-exciton complexes},
    author = {Khadzhi, P. I. and Moskalenko, S. A.},
    journal = {Письма в ЖЭТФ},
    volume = {20},
    issue = {8},
    pages = {566},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27342.shtml},
}