A. Balmford, A. Bruner, C. Ph, R. Costanza, S. Farber et al., Economic Reasons for Conserving Wild Nature, Science, vol.297, issue.5583, pp.950-953, 2002.
DOI : 10.1126/science.1073947
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.320.6503

A. Bengochea-morancho, A. Fuertes-eugenio, and S. Saz-salazar, A comparison of empirical models used to infer the willingness to pay in contingent valuation, Empirical Economics, 2005.
DOI : 10.1007/s00181-005-0236-x

G. C. Daily, T. Söderqvist, S. Aniyar, K. Arrow, P. Dasgupta et al., The Value of Nature and the Nature of Value, Science Magazine, pp.289395-396, 2003.

D. Groot and R. , Function-analysis and valuation as a tool to assess land use conflicts in planning for sustainable, multi-functional landscapes, Landscape and Urban Planning, pp.175-186, 2006.
DOI : 10.1016/j.landurbplan.2005.02.016

. European-greenways-association, Voies vertes ? Déclaration of Lille, 2009.

J. Halleux, J. Lambotte, and L. Bruck, Urban sprawl and collective service: the overcosts for water infrastructures, Revue d'Economie Régionale et Urbaine, pp.21-42, 2007.

G. Heal, Valuing Ecosystem Services, Ecosystems, vol.3, issue.1, pp.24-30, 2000.
DOI : 10.1007/s100210000006

R. Louv, Last Child in the Woods Saving our Children from Nature Deficit Disorder, 2005.

B. Martín-lópez, C. Montes, and J. Benayas, Influence of user characteristics on valuation of ecosystem services in Do??ana Natural Protected Area (south-west Spain), Environmental Conservation, vol.16, issue.03, pp.215-224, 2007.
DOI : 10.2307/3145843

J. Mogas, P. Riera, and J. Bennett, Accounting for afforestation externalities: a comparison of contingent valuation and choice modelling, European Environment, vol.28, issue.1, pp.44-58, 2005.
DOI : 10.1002/eet.372

J. Mogas, P. Riera, and J. Bennett, A comparison of contingent valuation and choice modelling with second-order interactions, Journal of Forest Economics, vol.12, issue.1, pp.5-30, 2006.
DOI : 10.1016/j.jfe.2005.11.001

E. Moons, B. Saveyn, S. Proost, and M. Hermy, Optimal location of new forests in a suburban region, Journal of Forest Economics, vol.14, issue.1, 2008.

E. Nelson, G. Mendoza, J. Regetz, S. Polasky, H. Tallis et al., Modeling multiple ecosystem services, biodiversity conservation, commodity production, and tradeoffs at landscape scales, Frontiers in Ecology and the Environment, pp.4-11, 2009.
DOI : 10.1641/B571009

D. Pearce and E. Özdemiroglu, Economic Valuation with Stated Preference Techniques. Summary Guide, DTLR Transport Local Government Regions, p.93, 2002.

M. Salverda, Analyse Coûts-Bénéfices Concepts-Clefs, ressource pédagogique préparée pour l'ICRA, 2004.

S. Terra, Guide de bonnes pratiques pour la mise en oeuvre de la méthode d'évaluation contingente, Direction des études économiques et de l'évaluation environnementale, pp.5-9, 2005.

R. S. Tol, The marginal damage cost of carbone dioxyde emissions: an assessment of the uncertainties, Energ. Policy, pp.2064-2074, 2005.

N. Treich, Introduction à l'analyse coût-bénéfice, Conférences ICSI-LERNA, 2006.

R. T. Waston, I. R. Nobler, and B. Bolin, Project-based activities, IPCC special report on land use, land use change and forestry, p.375, 2000.