@article {betrie2016issue,
	title = {On the issue of incomplete and missing water-quality data in mine site databases: Comparing three imputation methods},
	journal = {Mine Water and the Environment},
	volume = {35},
	number = {1},
	year = {2016},
	pages = {3},
	publisher = {Springer Nature BV},
	author = {Betrie, Getnet D and Sadiq, Rehan and Tesfamariam, Solomon and Morin, Kevin A}
}
