1. Far-Infrared Absorption in Superconducting and Normal Lead
2. Proceedings of the 12th International Conference on The Physics of Semiconductors;Kamgar,1974
3. Resonance Spectroscopy of Electronic Levels in a Surface Accumulation Layer
4. Electronic levels in surface space charge layers on Si(100)
5. Colloqu. Internl. CNRS. No. 242, Physique sous Champs Magnétiques Intenses;Ortenberg,1974