@article{PismaZhETF.41.370,
    title = {Direct observation of a circular photocurrent in lithium niobate},
    author = {Kazanskii, P. G. and Prokhorov, A. M. and Chernykh, V. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {41},
    issue = {9},
    pages = {370},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22368.shtml},
}