E. Caetano, V. Freire, G. Farias, and E. da Silva. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 13 (2-4):
1106-1110(2002)10th International Conference on Modulated Semiconductor Structures,
LINZ, AUSTRIA, JUL 23-27, 2001.
E. Caetano, V. Freire, and G. Farias. JOURNAL OF CRYSTAL GROWTH, 246 (3-4):
341-346(2002)2nd International Specialist Meeting on Bulk Nitride Growth and Related
Techniques, AMAZONAS, BRAZIL, MAY 18-23, 2002.