@article{PismaZhETF.2.171,
    title = {Three-photon Molecular Scattering of Light},
    author = {Akhmanov, S. A. and Klyshko, D. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {2},
    issue = {4},
    pages = {171},
    year = {1965},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24491.shtml},
}