1. Int. Conf. on nuclear forces and the few-nucleon problem,1960
2. Int. Conf. on nuclear physics,1967
3. Symp. on few-body problems, light nuclei, and nuclear interactions,1968
4. Int. Conf. on the three-body problem in nuclear and particle physics,1970
5. Int. Conf. on few-particle problems in the nuclear interaction,1973