@article{PismaZhETF.56.93,
    title = {Confinement of acoustic modes due to electron phonon coupling in the electron sheet},
    author = {Kochelap, V. A. and Gulseren, O.},
    journal = {Письма в ЖЭТФ},
    volume = {56},
    issue = {2},
    pages = {93},
    year = {1992},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19386.shtml},
}