1. Ninth Symposium (International) on Combustion;Freiwald,1963
2. Ninth Symposium (International) on Combustion;Litchfield,1963
3. Direct Initiation of Cylindrical Gaseous Detonations
4. Thirteenth Symposium (International) on Combustion;Bach,1971
5. Fifteenth Symposium (International) on Combustion;Lee,1974