@article{PismaZhETF.43.224,
    title = {Selective excitation of the luminescence of $Eu^{3+}$ ions in a liquid solution},
    author = {Avarmaa, R. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {43},
    issue = {5},
    pages = {224},
    year = {1986},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21295.shtml},
}