Herwig++ physics and manual
Manuel Bähr, Stefan Gieseke, Martyn A. Gigg, David Grellscheid, Keith Hamilton, Oluseyi Latunde-Dada, Simon Plätzer, Peter Richardson, Michael H. Seymour, Alexander Sherstnev and Bryan R. Webber
Eur. Phys. J. C, 58 4 (2008) 639-707
DOI: https://doi.org/10.1140/epjc/s10052-008-0798-9