Un análisis del programa de becas Ser Pilo Paga: apuntes sobre desigualdades y fronteras de clase social en Colombia

by Bacca Contreras, Rafael Eduardo
Published 2020

Producción artesanal de semilla de frijol en Veracruz, México.

by López, Ernesto, Ugalde, Francisco J., Contreras, Rafael, Barradas, Antonio
Published 2006

Carbon content loss and recovery processes in aerial biomass in the forested areas of the Nevado de Toluca Flora and Fauna Protected Natural Area during the period 2000-2013

by Regil-García, Héctor Hugo, Franco-Maass, Sergio, Endara-Agramont, Angel Rolando, Flamenco-Sandoval, Alejandro Fidel, Espinoza-Maya, Alejandra, Calderón-Contreras, Rafael, Pérez-Vega, Blanca Azucena
Published 2019