@misc{krull_the_program_1993, 
author={Krull, W.},
title={The program for enrichment reduction of research and test reactors},
year={1993},
howpublished = {conference lecture (invited): Saclay (F);},
note = {Krull, W.: The program for enrichment reduction of research and test reactors. IAEA Training Course on Spent Fuel. Saclay (F), 1993.}}