@article{article7c34fdae,
title   = {Evolution of the chemical composition of water passing through the unsaturated zone to ground water at an experimental site at the university of sao paulo, brazil},
author = {Szikszay, Mária and Kimmelmann e Silva, Annkarin Aurelia and Hypolito, Raphael and Figueira, R. M. and Sameshima, Roberto Hisayoshi},
year = {1990},
doi = {10.1016/0022-1694(90)90257-X},
journal   = {Journal of Hydrology}
}