1. A. S. Hundenann (NTIS Rept. PS-78/029/5GA [1978])
2. A. S. Hundemann (NTIS Rept. PS-78/0295/2GA [1978])
3. A. S. Hundemann (NTIS Rept. PS-78/0296/0GA [1978])
4. W. F. Witzig, D. R. De Walle (Nucl. Technol. 38, No 1 [1978] 25/34)
5. F. Kranebitter (Complete Pap. Int. Top. Meet. Low Temp. Nucl. Heat [1977] 236/245.- C. A. 90 [1979] 12067)