@article{PismaZhETF.22.578,
    title = {Excited states of acceptors in gallium phosphide},
    author = {Berndt, W. and Kopylov, A. A. and Pikhtin, A. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {22},
    issue = {11},
    pages = {578},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23405.shtml},
}