@inbook{RMa/The/2007Original, author = "Marfil Robles, Rebeca and Molina Tanco, Luis and Bandera Rubio, Antonio Jes{\'u}s and Sandoval Hern{\'a}ndez, Francisco", note = " junio 2007 6th IAPR-TS15 Workshop on Graph-based Representations in Pattern Recognition (GbR 2007), Alicante (Spain)", title = "{T}he construction of bounded irregular pyramids with a union-find decimation process ", year = "2007", }