@article{PismaZhETF.9.137,
    title = {Radiophysical Methods of Measuring the Rest Mass of the Photon},
    author = {Gertsenshtein, M. E. and Solovei, L. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {9},
    issue = {2},
    pages = {137},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25293.shtml},
}