@article{PismaZhETF.19.333,
    title = {Surface oscillations in the crystals $AIO_3, LiNbO_3$, and $Y_3Fe_5O_{12}$},
    author = {Yakovlev, V. A. and Zhizhin, G. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {19},
    issue = {6},
    pages = {333},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27004.shtml},
}