@article{articlec181f6ab,
title   = {Identification of compounds present in single superphosphates produced from brazilian phosphate rocks using SEM, EDX, and X-ray techniques},
author = {Prochnow, Luís Ignácio and Clemente, Celso Augusto and Dillard, E F and Melfi, Adolpho José and Kauwenbergh, S},
year = {2001},
journal   = {Soil Science}
}