SpringerLink (Online service), Araujo, H., Mendonça, A. M., Pinho, A. J., & Torres, M. I. (2009). Pattern Recognition and Image Analysis: 4th Iberian Conference, IbPRIA 2009 Póvoa de Varzim, Portugal, June 10-12, 2009 Proceedings. Springer Berlin Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Helder Araujo, Ana Maria Mendonça, Armando J. Pinho, και María Inés Torres. Pattern Recognition and Image Analysis: 4th Iberian Conference, IbPRIA 2009 Póvoa De Varzim, Portugal, June 10-12, 2009 Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Pattern Recognition and Image Analysis: 4th Iberian Conference, IbPRIA 2009 Póvoa De Varzim, Portugal, June 10-12, 2009 Proceedings. Springer Berlin Heidelberg, 2009.
