"1968-05-10" . . . "1969-03-03" . . . . . "VAK Lucens" . . . . . . "research reactor in Lucens" . . "1968" . . . "Lucens" . "Lucens - Prototype power reactor" . . "1962" . "LUCENS" . . . "Lucens nuclear reactor" . . . "D" . . . "Lucens reactor" . . . . . "Lucens reactor" . "the small Lucens pilot reactor" .