Compensation and Rewards for Environmental Services in the Developing World: Framing Pan-Tropical Analysis and Comparison oleh Brent M. Swallow, Mikkel F. Kallesoe, Usman A. Iftikhar, Meine van Noordwijk, Carina Bracer, Sara J. Scherr, K. V. Raju, Susan V. Poats, Anantha Kumar. Duraiappah, Benson O. Ochieng, Hein Mallee, Rachael Rumley