2006 · H. P. da F. Feitosa, J. S. de Assis, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) · 1
2007 · João Paulo Da Silva Macedo, Lourival Ferreira Cavalcante, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
2004 · J. C. Feitosa Filho, Patrícia Aparecida Pimenta Pereira, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
2004 · J. C. Feitosa Filho, S. M. S. das C. Sousa, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
2003 · Anielson dos Santos Souza, J. C. Feitosa Filho, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
2001 · J. C. Feitosa Filho, Lourival Ferreira Cavalcante, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
1998 · J. C. Feitosa Filho, Tarlei Arriel Botrel, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
1997 · J. C. Feitosa Filho, Jansen Fernandes Medeiros, et al. · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)