@article{PismaZhETF.94.133,
    title = {Low-temperature anomalies of $^4$He  crystals},
    author = {Andreev, A. F.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {94},
    issue = {2},
    pages = {133},
    year = {2011},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29445.shtml},
}