Reactor Analysis. New York: Wiley. . Marchuk, G. I., & V. I. Lebedev (1986). Numerical Methods in the Theory of Neutron Transport. Taylor & Francis. p. 123. . External links ANSWERS Software Service website LANL MCNP6 website LANL MCNPX website VTT Serpent website OpenMC website MIT CRPG OpenMOC website TRIPOLI-4 website Transport Nuclear physics