1. A multivariate statistical analysis of the composition of rainwater near Cubatão, SP, Brazil;Abbas;Environ. Pollut.,1993
2. A evolução da qualidade do ar em Cubatão;Alonso;Química Nova,1992
3. Fluoride. Potentiometric method—official first action;J. AOAC,1975
4. Bioindikatoren. Möglichkeiten, Grenzen und neue Erkenntnisse;Arndt,1987
5. The use of bioindicators for environmental monitoring in tropical and subtropical countries;Arndt,1991