@article{PismaZhETF.20.7,
    title = {Two-dimensional collapse of Langmuir waves},
    author = {Zakharov, V. E. and Mastryukov, A. F. and Synakh, V. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {1},
    pages = {7},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27169.shtml},
}