

@article {3428,
	title = {{Sanitation: A global estimate of sewerage connections without treatment and the resulting impact on MDG progress.}},
	journal = {Environmental Science {\{}{\&}{\}} Technology},
	volume = {47},
	number = {4},
	year = {2013},
	pages = {1994{\textendash}2000},
	doi = {10.1021/es304284f.},
	author = {Baum, R and Luh, J and Bartram, J}
}
