@article{PismaZhETF.2.529,
    title = {Inertial Echo and Coherent Gravitational Waves},
    author = {Kopvillem, U. Kh. and Nagibarov, V. R.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {2},
    issue = {12},
    pages = {529},
    year = {1965},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24660.shtml},
}