@article{PismaZhETF.115.609,
    title = {About derivatives in analytic QCD},
    author = {Kotikov, A. V. and Zemlyakov, I. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {115},
    issue = {10},
    pages = {609},
    year = {2022},
    doi = {10.31857/S1234567822100019},
    url = {http://jetpletters.ru/ps/dx/10.31857/S1234567822100019},
}