@article{PismaZhETF.70.167,
    title = {Improvement of perturbation theory in QCD for $e^+e^-\to $hadrons and the problem of $\alpha_s$ freezing},
    author = {Geshkenbein, B. V. and Ioffe, B. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {70},
    issue = {3},
    pages = {167},
    year = {1999},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_13984.shtml},
}