@article{PismaZhETF.25.87,
    title = {Ferromagnetic semiconductors with giant blue shift of the absorption edge},
    author = {Nagaev, E. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {25},
    issue = {2},
    pages = {87},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21046.shtml},
}