Towards Higgs boson production in gluon fusion to NNLO in the MSSM Alexey Pak, Matthias Steinhauser and Nikolai Zerf Eur. Phys. J. C, 71 3 (2011) 1602 Published online: 25 March 2011 DOI: 10.1140/epjc/s10052-011-1602-9