@article{Torres08a, 
author = "R.S. Torres and A.X. Falc{\~{a}}o and M.A. Gon{\c{c}}alves and J.P.
  Papa and B. Zhang and W. Fan and E.A. Fox",
title = "A Genetic Programming Framework for Content-based Image Retrieval",
journal = "Pattern Recognition",
publisher = "Elsevier",
year = 2008,
note = "in press"
}