@article{PismaZhETF.49.661,
    title = {Anisotropy of growth coefficient and surface harndess of the $^4He$ crystals},
    author = {Andreeva, O. A. and Keshishev, K. O. and Osip'yan, S. Yu.},
    journal = {Письма в ЖЭТФ},
    volume = {49},
    issue = {12},
    pages = {661},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17015.shtml},
}