1. J. Harvey, Rep. CECB, RD/B-827 (1967).
2. J. Dennis, J. Smith, and S. Boot, in: Proceedings of the IAEA Symposium ?Neutron Monitoring,? Vienna (1967), p. 537.
3. P. Nagarajan and D. Krishnan, Health Phys.,17, 323 (1969).
4. J. Harvey, W. Hudd, and S. Townsend, in: Proceedings of the IAEA Symposium ?Neutron Monitoring for Radiation Purposes,? Vienna,11, 199, Dec. 11?15 (1972).
5. D. Hankins, in: Proceedings of the IAEA Symposium ?Neutron Monitoring for Radiation Purposes,? Vienna,11, 199, Dec. 11?15 (1972), p. 15.