@article{article4179d88e,
title   = {Flow injection system with multisite detection for spectrophotometric determination of calcium and magnesium in soil extracts and natural waters},
author = {Nogueira, A R A and Brienza, S M B and Zagatto, Elias Ayres Guidetti and Lima, J. L. F. C. and Araújo, A N},
year = {1996},
journal   = {Journal of Agricultural and Food Chemistry}
}