1. T. B. LINDEMER, H. J. de NORDWALL, and R. A. OLSTAD, in Thermodynamics of Nuclear Materials, Vol. I, pp. 163–170, International Atomic Energy Agency, Vienna (1975);
2. also, A. NAOUMIDIS and B. THIELE, in Thermodynamics of Nuclear Materials, Vol. I, pp. 173–186, International Atomic Energy Agency, Vienna (1975).
3. A. STRIGL and E. PROKSCH, Reaktortagung des DtAF, Compactband, pp. 371–374, Düsseldorf (1976).