@article{PismaZhETF.2.300,
    title = {Observation of Parametric Amplification in the Optical Range},
    author = {Akhmanov, S. A. and Kovrigin, A. I. and Piskarskas, A. S. and Fadeev, V. V. and Khokhlov, R. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {2},
    issue = {7},
    pages = {300},
    year = {1965},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24526.shtml},
}