1. ECOSUR mapping database 1995: Protected Areas and Archaeological Sites – mapping and database development to support conservation planning in the Selva Maya tri-national región. Library, San Cristóbal de las Casas, El Colegio de la Frontera Sur, Mexico.
2. Estudio preliminar del Río Usumacinta,1953
3. Geographies of conservation III: Nature's spaces;Adams;Progress in Human Geography,2020
4. Contradictions of spatial governance: Bioeconomy and the management of state space in Finland;Ahlqvist;Antipode,2009
5. Peace parks: Conservation and conflict resolution,2007