Soto-Pinto, L., Romero-Alvarado, Y., Caballero-Nieto, J. and Segura Warnholtz, G. 2001. Woody plant diversity and structure of shade-grown-coffee plantations in Northern Chiapas, Mexico. Revista de Biología Tropical. 49, 3-4 (Dec. 2001), 977–987.