@article{postel_entering_2000,
	title = {Entering an era of water scarcity: the challenges ahead},
	volume = {10},
	shorttitle = {Entering an era of water scarcity},
	number = {4},
	journal = {Ecological applications},
	author = {Postel, Sandra L.},
	year = {2000},
	keywords = {boundaries, collapse, water},
	pages = {941--948}
}