Global Patterns in the Implementation of Payments for Environmental Services Ezzine-de-Blas, Driss ; Wunder, Sven ; Ruiz-Pérez, Manuel ; Moreno-Sanchez, Rocio del Pilar Abstract Publication: PLoS ONE Pub Date: March 2016 DOI: 10.1371/journal.pone.0149847 Bibcode: 2016PLoSO..1149847E