ANASTACIO-MARTINEZ, Nancy Diana; FRANCO-MAASS, Sergio; VALTIERRA-PACHECO, Esteban  e  NAVA-BERNAL, Gabino. Utilization of non-timber forest products in the high mountain forests of central Mexico. Rev. mex. de cienc. forestales [online]. 2016, vol.7, n.37, pp.21-38. ISSN 2007-1132.