1. Boudjellal, L. (2009). Role of the oasis in the creation of the island of freshness in hot and arid zones, Case of the oasis of Chetma-Biskra-Algeria. Constantine University.
2. Bougé, F. (2009). Characterization of public green spaces according to their place in the urban-rural gradient, Proyecto de fin de estudios. Polytechnic School of the University of Tours.
3. Bruggeman, D., Verelst, S., Hendrickx, S., & Legrand, A. (2020). Green infrastructures: Pro-viders of ecosystem services. Permanent Conference on Territorial Development.
4. Clergeau, P. (2007). An ecology of the urban landscape. Apogee Editions.
5. Cocean, P. (2020). Repulsive Cultural Lanscapes. La Revue Roumaine de Géographie, 147, 14-54.