@article{PismaZhETF.5.351,
    title = {Stimulated Emission of $LiNbO_3$ Crystals vith Neodymium Impurity},
    author = {Evlanova, N. F. and Kovalev, A. S. and Koptsik, V. A. and Kornienko, L. S. and Prokhorov, A. M. and Rashkovich, L. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {5},
    issue = {10},
    pages = {351},
    year = {1967},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25193.shtml},
}