Sánchez-Morales Primo; ROMERO-ARENAS, Omar. Fossil fuels and CO2e in traditional milpa and monoculture maize systems in Tlaxcala, Mexico. Revista Mexicana de Ciencias Agrícolas, México, ME, v. 8, n. 4, p. 919–932, 2017. DOI: 10.29312/remexca.v8i4.17. Disponível em: https://cienciasagricolas.inifap.gob.mx/index.php/agricolas/article/view/17. Acesso em: 31 may. 2026.