Charged Higgs bosons in the next-to MSSM (NMSSM) A.G. Akeroyd, A. Arhrib and Qi-Shu Yan Eur. Phys. J. C, 55 4 (2008) 653-665 Published online: 17 May 2008 DOI: 10.1140/epjc/s10052-008-0617-3