@article{PismaZhETF.17.374,
    title = {Threshold of  Decay   Instability  in   an   Inhomogeneous   Plasma},
    author = {Piliya, A. D.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {17},
    issue = {7},
    pages = {374},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23571.shtml},
}