Recreational demand for clean water: evidence from geotagged photographs by visitors to lakes

Autor:	Keeler, Bonnie L, Wood, Spencer A, Polasky, Stephen, Kling, Catherine, Filstrup, Christopher T, Downing, John A
Zdroj:	Frontiers in Ecology and the Environment, 2015 Mar 01. 13(2), 76-81.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/44000839 Zobrazit plný text záznamu Plný text