M. Velásquez Marin, M. S. D. C. Gutiérrez Aguilar, and M. A. Delgado Mantilla, “Efficacy of cattle manure-derived biochar for the remediation of lead-contaminated soils”, LACCEI, vol. 1, no. 14, July 2026, doi: 10.18687/LACCEI2026.1.1.329.