@article{PismaZhETF.45.277,
    title = {Nonlinear bulk absorption in $Y_{3-x}Er_xAI_5O_{12}$ crystals},
    author = {Zhekov, V. I. and Murina, T. M. and Popov, A. V. and Prokhorov, A. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {6},
    pages = {277},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18747.shtml},
}