@article{PismaZhETF.30.324,
    title = {Investigation of the phase of the electroacoustic echo},
    author = {Evtikhiev, N. N. and Kukhtin, R. I. and Venevtsev, Yu. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {30},
    issue = {6},
    pages = {324},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20633.shtml},
}