@article{PismaZhETF.42.201,
    title = {Excited acceptor-like states of the exciton bound on a single nitrogen atom in gallium phosphide},
    author = {Lupal, M. V. and Pikhtin, A. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {42},
    issue = {5},
    pages = {201},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21591.shtml},
}