@article{PismaZhETF.37.464,
    title = {Observation of nonequilibrium diffusion in $LiNbO_3$ crystals},
    author = {Brovkovich, V. G. and Sturman, B. I.},
    journal = {Письма в ЖЭТФ},
    volume = {37},
    issue = {10},
    pages = {464},
    year = {1983},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22859.shtml},
}