@article{PismaZhETF.5.445,
    title = {Feasibility of Generating and Receiving Coherent Gravitational Waves by Opticaully "Closed" Systems},
    author = {Nagibarov, V. R. and Kopvillem, U. Kh.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {5},
    issue = {12},
    pages = {445},
    year = {1967},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25227.shtml},
}