1. 9th Int. Conf. on Positron Annihilation;Badia,1991
2. X-ray Scattering of Synthetic Polymers;Balta-Calleja,1989
3. A positron annihilation spectroscopy study of carbon-epoxy composites
4. Positron and Positronium Chemistry, 3rd Int. Workshop;Duplatre,1990
5. Positron annihilation;Eldrup,1982