@article{PismaZhETF.50.60,
    title = {Generation by electron-beam-pumped $AI_2O_3$:$Ti^{3+}$},
    author = {Skripko, G. A. and Bartoshevich, S. G. and Zuev, V. V. and Mal'tsev, A. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {50},
    issue = {2},
    pages = {60},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17042.shtml},
}