How relevant are non-use values and perceptions in economic valuations? The case of hydropower plants S. Sousa A. Botelho L.M. Costa Pinto M. Valente Publication Journal: Energies Year of Publication: 2019 Volume: 14 Issue: 15 Identifiers Other Numbers: 2-s2.0-85070327330 Alternative titles DOIGoogle ScholarBibTeXRIS Locators