@article{PismaZhETF.57.455,
    title = {Anomalous behavior of the coefficient of second-harmonic conversion during the readout and writing of $\chi^{(2)}$ gratings},
    author = {Bolshtyanskii, M. A. and Zel'dovich, B. Ya. and Churikov, V. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {57},
    issue = {8},
    pages = {455},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17817.shtml},
}