DIN 25403-2
DIN 25403-2 Criticality safety in processing and handling fissile materials - Part 2: Criticality data for uranium 235 metal light-water mixtures
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 10/01/1995
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 10/01/1995