@article{PismaZhETF.3.177,
    title = {Use of Substances Containing Rare-earth Ions with Even Number of Electrons to Obtain Infralow Temperatures},
    author = {Al'tshuler, S. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {3},
    issue = {4},
    pages = {177},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24718.shtml},
}