@article{PismaZhETF.32.240,
    title = {Sagnac effect in a fiber-optic interferometer},
    author = {Gur'yanov, A. N. and Gusovskii, D. D. and Devyatykh, G. G. and Dianov, E. M. and Karasik, A. Ya. and Kozlov, V. A. and Neustruev, V. B. and Prokhorov, A. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {32},
    issue = {3},
    pages = {240},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21678.shtml},
}