On radiative QCD backgrounds to exclusive H→bb̄ production at the LHC and a photon collider V.A. Khoze, M.G. Ryskin and W.J. Stirling Eur. Phys. J. C, 48 2 (2006) 477-488 Published online: 17 November 2006 DOI: 10.1140/epjc/s10052-006-0027-3