Weighted Overlay, Fuzzy Logic and Neural Networks for Estimating Vegetation Vulnerability within the Ecological Economical Zoning of Minas Gerais, Brazil. - Luis Marcelo T. de Carvalho; Moises S. Ribeiro; Luciano T. de Oliveira; Thomaz C. de A. Oliveira; Julio N. Louzada; José Roberto S. Scolforo; Antonio D. Oliveira (GEOINFO, 2007)