1. Kohl, J., Monitors for nuclear reactor fission products. I.S.A.J. June, 43 (1958).
2. Long E. u.a., Detection of faulty fuel elements. J.B.N.E.C. April, 197 (1957).
3. Macrae, W., The instrumentation of reactors. Brit. J. App. Phys. Supp. 5, S71 (1956), J.B.N.E.C. Jan., 871 (1957).
4. Heath, R. L., Fission product monitoring in reactor coolant water. Nucleonics Dec., 54 (1957).
5. Millar, C. H. u.a., Delayed neutron monitors for the detection of sheath failures in reactor fuel rods. Nucl. Sci. and Engg. 2. 363 (1957).