@article{PismaZhETF.63.688,
    title = {Macroscopic quantum tunneling in small magnetic particles},
    author = {Molotkov, S. N. and Nazin, S. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {63},
    issue = {9},
    pages = {688},
    year = {1996},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_14825.shtml},
}