@article{JETPL.115.609,
    title = {About Derivatives in Analytic QCD},
    author = {Kotikov, A. V. and Zemlyakov, I. A.},
    journal = {JETP Lett.},
    volume = {115},
    issue = {10},
    pages = {565},
    year = {2022},
    doi = {10.1134/S0021364022600628},
    url = {http://jetpletters.ru/ps/dx/10.31857/S1234567822100019},
    note = {[Pisma v ZhETF 115, 609 (2022)]}
}