@article{JETPL.114.318,
    title = {Spin Fluctuations and Negative Heat Capacity (Brief Review)},
    author = {Stishov, S. M. and Petrova, A. E.},
    journal = {JETP Lett.},
    volume = {114},
    issue = {5},
    pages = {269},
    year = {2021},
    doi = {10.1134/S0021364021170100},
    url = {http://jetpletters.ru/ps/dx/10.31857/S1234567821170055},
    note = {[Pisma v ZhETF 114, 318 (2021)]}
}