TTP11-31 Complete QCD corrections to Hadronic Z--Decays in Order \alpha_s^4

TTP11-31 Complete QCD corrections to Hadronic Z–Decays in Order \alpha_s4
P. A. Baikov, K. G. Chetyrkin, J. H. Kühn and J. Rittinger
Phys.Rev.Lett. 108 222003 2012
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