@article{PismaZhETF.26.644,
    title = {Backward elastic waves in plates},
    author = {Burlii, P. V. and Kucherov, I. Ya.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {26},
    issue = {9},
    pages = {644},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20970.shtml},
}