Gómez-Díaz, J. A., T. Krömer, C. I. Carvajal-Hernández, G. Gerold, and F. Heitkamp. “Richness and Distribution of Herbaceous Angiosperms Along Gradients of Elevation and Forest Disturbance in Central Veracruz, Mexico”. Botanical Sciences, Vol. 95, no. 2, July 2017, pp. 307-28, doi:10.17129/botsci.859.