1. ICSPI: 1st International Confeence on Shot Peening, Paris, 1981 1982 (Pergamon Press, Oxford).
2. ICSP2: 2nd International Conference on Shot Peening, Chicago, 1984, American Shot Peening Society, 1984 (Paramus, New Jersey)
3. ICSP3: 3rd International Conference on Shot Peening, Garmisch-Partenkirchen, Germany, 1987, 1987 (Deutsche Gesellschaft für Metalkunde e.V.).
4. ICSP4: 4th International Conference on Shot Peening, Tokyo, 1990 1990 (The Japan Society of Precision Engineering (JSPE)).
5. Woelfel M. M. Shot peening—control and measurement, SAE 821453, 1983, pp. 4526–4529 (Society of Automotive Engineers, Warrendale, Pennsylvania).