@article {haider2016inter,
	title = {Inter-utility performance benchmarking model for small-to-medium-sized water utilities: aggregated performance indices},
	journal = {Journal of Water Resources Planning and Management},
	volume = {142},
	number = {1},
	year = {2016},
	pages = {04015039},
	publisher = {American Society of Civil Engineers},
	author = {Haider, Husnain and Sadiq, Rehan and Tesfamariam, Solomon}
}
