1. Proc. Conf. on Electronic Properties of Two-Dimensional Systems,1976
2. Proc. Conf. on Electronic Properties of Two-Dimensional Systems,1978
3. Proc. Conf. on Electronic Properties of Two-Dimensional Systems,1980
4. Proc. Conf. on Electronic Properties of Two-Dimensional Systems,1982
5. Proc. 12th Int. Conf. Phys. Semicond.;Kamgar,1974