1. Sixth Symposium (International) on Combustion;Friedman,1957
2. The mechanism of deflagration of pure ammonium perchlorate;Friedman;AFSOR TN 59-173-5,1959
3. Sixth Symposium (International) on Combustion;Schultz,1957
4. Eighth Symposium (International) on Combustion;Johnson,1962
5. Ninth Symposium (International) on Combustion;Nachbar,1963