Flores Velásquez P, Martínez de Anguita P, Romero Calcerrada R, Novillo CJ, Ruiz MA. Payment for environmental services between the adding and the subsidization: application to the valuation of the landscape in the San Juan dam, Madrid, Spain. For. syst. [Internet]. 2008Jul.4 [cited 2026Aug.3];17(1):39-3. Available from: https://fs.revistas.csic.es/index.php/fs/article/view/1022