@article{Montoya08a,
author = "J.A. Montoya-Zegarra and J.P. Papa and N.J. Leite and R.S.
  Torres and A.X. Falc{\~{a}}o",
title =  "Learning How to Extract
   Rotation-Invariant and Scale-Invariant Features from Texture
   Images",
journal = "EURASIP Journal on Advances in Signal Processing", 
publisher = "Hindawi", 
year = "2008",
note = "doi: 10.1155/2008/691924"
}