The determination of α S from τ decays revisited M. Davier, S. Descotes-Genon, A. Höcker, B. Malaescu and Z. Zhang Eur. Phys. J. C, 56 3 (2008) 305-322 Published online: 12 August 2008 DOI: 10.1140/epjc/s10052-008-0666-7