TY - CHAP U1 - Konferenzveröffentlichung A1 - Hack, Jochen T1 - Payments for hydrological ecosystem services as a tool for integrated water and resource management and development (IWRDM) = Pagos por servicios ambientales hídricos como herramienta para el manejo y el desarollo integrado de recursos naturales T2 - Environmental economy : Congress of Environmental Economists and Natural Resources of Latin American and the Carribean (ALEAR) San José, Costa Rica 2009 Y1 - 2009 ER -