@article{PismaZhETF.110.335,
    title = {Flat band and Planckian metal},
    author = {Volovik, G. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {110},
    issue = {5},
    pages = {335},
    year = {2019},
    doi = {10.1134/S0370274X19170090},
    url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19170090},
}