J. de Sousa, V. Freire, and E. da Silva. APPLIED SURFACE SCIENCE, 237 (1-4):
553-558(2004)7th International Symposium on Atomically Controlled Surfaces,
Interfaces and Nanostructures, Nara, JAPAN, NOV 16-20, 2003.
J. de Sousa, V. Freire, and E. da Silva. APPLIED SURFACE SCIENCE, 234 (1-4):
218-221(2004)9th International Conference on Formation of Semiconductor Interfaces
(ICFSI 9), Madrid, SPAIN, SEP 15-19, 2003.