Kerntechnische Gesellschaft im Deutschen Atomforum e.V., Bonn (F.R. Germany); p. 163-166; 1976; ZAED; Eggenstein-Leopoldshafen, F.R. Germany; Reactor meeting; Duesseldorf, F.R. Germany; 30 Mar 1976; AED-CONF--76-013-041; 4 figs. Short communication only.