@article{PismaZhETF.15.147,
    title = {Direct Observation of Refractive Index Gradients Produced in a Liquid by an Ultrashort Laser Pulse},
    author = {Kryukov, P. G. and Matveets, Yu. A. and Chekalin, S. V.},
    journal = {Письма в ЖЭТФ},
    volume = {15},
    issue = {3},
    pages = {147},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26512.shtml},
}