DIN 25403-4
DIN 25403-4 Criticality safety in processing and handling fissile materials - Part 4: Criticality data for uranium dioxide 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