@article{PismaZhETF.33.397,
    title = {Possible structures and phase transitions on the surface of crystals},
    author = {Marchenko, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {33},
    issue = {8},
    pages = {397},
    year = {1981},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23038.shtml},
}