CENTRO EXPERIMENTAL GAVIOTAS

http://www.scizerinm.org/lasgaviotasupdate.html

http://www.worldproutassembly.org/archives/2006/05/reforestation_l.html

http://www.unesco.org/courier/1999_02/sp/planete/txt1.htm

http://www.zeri.org/case_studies_reforestation.htm

http://www.edilmariano.com/2007/10/16/el-pueblito-que-puede-salvar-el-mundo-y-queda-en-colombia/

http://www.planeta.com/planeta/99/0299bookgaviotas.html