An improved control-variate scheme for particle-in-cell simulations with collisions. - Ralf Kleiber; Roman Hatzky; Axel Könies; K. Kauffmann; P. Helander (Comput. Phys. Commun., 2011)

Energy and momentum preserving Coulomb collision model for kinetic Monte Carlo simulations of plasma steady states in toroidal fusion devices. - Alex M. Runov; Sergei V. Kasilov; P. Helander (J. Comput. Phys., 2015)