@article{PismaZhETF.20.229,
    title = {Combination frequencies in the interaction between high-power short-wave radiation and ionospheric plasma},
    author = {Getmantsev, G. G. and Zuikov, N. A. and Kotik, D. S. and Mironenko, L. F. and Mityakov, N. A. and Rapoport, V. O. and Sazonov, Yu. A. and Trakhtengerts, V. Yu. and Eidman, V. Ya.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {4},
    pages = {229},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27236.shtml},
}