@inproceedings{inproceedingsc4522245,
title   = {Lateritic weathering effects over phosphatic Brazilian ores: Catalão I and Juquia (Brasil)},
author = {Toledo, Maria Cristina Motta de and Ferrari, Viviane Carillo and Santos, C. N. and Alcover Neto, Arnaldo and Perseval, Ph. de and Fontan, F and Ribeiro, C. C},
year = {1999},
publisher = {The Association Exploration Geochemists},
booktitle   = {International Geochemical Exploration Symposium}
}