1. Slow neutron imaging using scintillating glass optical fibers
2. Two-dimensional neutron scintillation detector with optimal gamma discrimination
3. Collimated Holes, Inc. Campbell, CA 95008, USA.
4. Levy Hill Laboratories Ltd, 5 Sheffield House, Fieldins Road, Cheshunt, Waltham, Hertforshire EN8 9TJ, England.
5. Technical Bulletin of NE-Technology, Bankhead May, Sighthill, Edinburgh EH11 4BY, Scotland.