Paap, P., H. Schreppers, E. Schinkel (1998). Planting and Propagating Trees. Agrodok No. 19, CTA/.AGROMISA, Ede, 1998.

Paap, P. C. Brils, P. van den Ende, B. de Leede. (1994) Agroforestry. Agrodok No. 16. CTA/.AGROMISA, Ede.

Paap, P.F. (1993). Farmers or Foresters. The use of trees oin the sylvopastoral systems of the Atlantic Zone of Costa Rica. Report No. 52. Atlantic Zone Programme, CATIE-UAW-MAG, Turrialba, Costa Rica.

Paap, P, J, Hummel, A. van Leeuwen & P. Van Konijnenburg, Forests, a Growing Concern “An increasing demand on a diminishing forest area”. In: Hummel, J.A. and Parren, M.P.E. (1992). Forest, a growing conern. Proceedings of the XIXth International Forestry Students Symposium, Wageningen, The Netherlands, 30 September – 7 October, 1991. IUCN, Gland, Switzerland and Cambridge, UK, 229 p.

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Then governments should't be afraid to test concession systems of tenure rights for communities and enterprises. The govts should facilitate, monitor, control and enforce if necessary. Let 1000 flowers bloom.…