Velásquez Ciro, D., Cañón Barriga, J. E., & Hoyos Rincón, I. C. (2019). Estimation of the marginal effect of urban vegetation on the removal of PM2.5 in Medellín, Colombia. Iberoamerican Environment & Sustainability Journal, 2(2), 61-70. https://doi.org/10.46380/rias.v2i2.50