A brief review of a new nonperturbative expansion technique for QCD and itsapplication to the inclusive decay of the Г lepton and e^+e^- annihilation into hadrons at low energies is presented.
Li, H. N. (1996). Applicability of Perturbative QCD to B Meson Decays. Chinese Journal of Physics, 34(3S), 1047-1055. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199606-201211280001-201211280001-1047-1055