@article{PismaZhETF.45.562,
    title = {Extension of holography to multifrequency fields},
    author = {Baranova, N. B. and Zel'dovich, B. Ya.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {12},
    pages = {562},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18859.shtml},
}