@article{PismaZhETF.31.377,
    title = {Inversion of the wave front by a surface},
    author = {Kulikov, O. L. and Pilipetskii, N. F. and Sudarkin, A. N. and Shkunov, V. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {31},
    issue = {6},
    pages = {377},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20318.shtml},
}