Purroy Vásquez, R., Ortega Vargas, E., Hernández Santiago, Q., Del Ángel Piña, Óscar, Meza Hernández, J., Reyes Santiago, B., & Nicolás Vicente, F. (2019). Maize small-scale agroecosystems in the High Huasteca Region of Veracruz: economic-energetic efficiency and poverty. Agricultura, Sociedad Y Desarrollo, 16(1), 105–121. https://doi.org/10.22231/asyd.v1i1.983