@article{PismaZhETF.20.722,
    title = {Certain results of investigations of nonlinear effects in the E layer of the ionosphere},
    author = {Shlyuger, I. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {11},
    pages = {722},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27395.shtml},
}