1. J.R. RHODES, ANS-Meeting Neutron Sources and Applications, Augusta/Georgia, 1971.
2. J.G. LARSON, Californium-252 Progress, Vol. 5, 1970.
3. H. BRAUN, IAEA-Seminar Uses of Californium-252 in Teaching and Research, Karlsruhe, 1975; Chemie-Ingenieur-Technik, 47 (1975) 903.
4. H. BRAUN, F. RIFFEL, 4th Symp. Recent Developments in Neutron Activation Analysis, Cambridge, 1975; Aufbereitungs-Technik, 17 (1976) 305.
5. A.S.M. DE JESUS, G.W.J. VAN DER BERG, Report PEL−236, 1974.