Lo Monaco, P. A. V., G. Roldi Júnior, G. H. S. Vieira, C. M. Meneghelli, and C. da P. Simon. “OYSTERS AND EGG SHELLS GROUND FOR CORRECTION OF SOIL ACIDITY - DOI: 10.13083/1414-3984/reveng.V23n6p584-590”. Engineering in Agriculture, vol. 23, no. 6, Mar. 2016, pp. 584-90, doi:10.13083/reveng.v23i6.636.