1. Kushida, R. O., private communication.
2. Ninth Intersociety Energy Conversion Engineering Conference;Hoehn,1974
3. Thirteenth Symposium (International) on Combustion;Ballinger,1971
4. “Collimated Hole Structure” (1210 holes/cm2, 0.23-mm hole diameter, perforated area diameter 3.8-cm, 3.18-mm plate thickness), Brunswick Corporation, 69 West Washington Street, Chicago, IL.