@article{PismaZhETF.66.341,
    title = {Influence of  magnetic impurities on  the heat capacity of nuclear spins},
    author = {Dyugaev, A. M. and Ovchinnikov, Yu. N. and and Fulde, P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {66},
    issue = {5},
    pages = {341},
    year = {1997},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_15474.shtml},
}