1. Variola minor in Braganca Paulista county, 1956: a trend-surface analysis;Angulo;Am. J. Epidemiol.,1977
2. Land use associations and changes in population indices of urban raccoons during a rabies epizootic;Anthony;J. Wildlife Dis.,1990
3. Bailey, T.C., Gatrell, A.C., 1995. Interactive Spatial Data Analysis. Wiley, New York, 413 pp
4. Davis, J.C., 1986. Statistics and Data Analysis in Geology. Wiley, New York, 435 pp
5. Dean, J.A., Burton, A.H., Dean, A.G., Brendel, K.A., 1993. Epi Map: a mapping program for IBM-compatible microcomputers. Centers for Disease Control and Prevention, Atlanta, GA, USA