F. Barbosa, J. de Lima, and L. Goncalves. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 226 (1, SI):
638-640(2001)International Conference on Magnetism, RECIFE, BRAZIL, AUG 06-11, 2000.
J. de Sousa, V. Freire, and E. da Silva. QUANTUM SENSING AND NANOPHOTONIC DEVICES II, volume 5732 of Proceedings of SPIE, page 530-537. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA, SPIE, SPIE-INT SOC OPTICAL ENGINEERING, (2005)Conference on Quantum Sensing and Nanophotonic Devices II, San Jose, CA,
JAN 23-27, 2005.