M. Graca, F. da Silva, A. Sombra, и M. Valente. JOURNAL OF NON-CRYSTALLINE SOLIDS, 352 (9-20):
1501-1505(2006)21st International Conference on Amorphous and Nanocrystalline
Semiconductors, Lisbon, PORTUGAL, SEP 04-09, 2005.
M. Valente, C. Silva, A. Sombra, и M. Graca. JOURNAL OF NON-CRYSTALLINE SOLIDS, 356 (11-17):
800-804(2010)5th International Conference on Dielectric Spectroscopy and Its
Applications, Lyon, FRANCE, AUG 26-29, 2008.