@article{PismaZhETF.96.64,
    title = {Analytical five-loop expressions for the renormalization group  QED  $\boldsymbol{\beta}$-function  in different renormalization schemes},
    author = {Kataev, A. L. and Larin, S. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {96},
    issue = {1},
    pages = {64},
    year = {2012},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29862.shtml},
}