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2. L.S. Waters, ed., MCNPXTM Users's Manual Version 2.3.0, LA-UR-02-2627, April 2002.
3. P. Vértes and Á. Brolly, Talk presented at the 12th Symposium of AER, Varna, September 22-26, 2002; to be published in the Proceedings by KFKI AEKI.