BOKASUN: A fast and precise numerical program to calculate the Master Integrals of the two-loop sunrise diagrams. - Michele Caffo; Henryk Czyz; Michal Gunia; Ettore Remiddi (Comput. Phys. Commun., 2009)

EKHARA: A Monte Carlo generator for e+e-→e+e-π0 and e+e-→e+e-π+π- processes. - Henryk Czyz; Sergiy Ivashyn (Comput. Phys. Commun., 2011)

EKHARA 3.0: An update of the EKHARA Monte Carlo event generator. - Henryk Czyz; Patrycja Kisza (Comput. Phys. Commun., 2019)