1. Geant4 – a simulation toolkit;Agostinelli;Nucl. Instrum. Methods A,2003
2. The validity of the straightahead approximation in space vehicle shielding studies;Alsmiller,1965
3. Alsmiller, R.G., 1967. Personal communication.
4. The FLUKA code: description and benchmarking;Battistoni,2007
5. MESTRN: a deterministic meson–muon transport code for space radiation;Blattnig,2004