@article {zacheus1994occurrence,
	title = {Occurrence of legionellae in hot water distribution systems of Finnish apartment buildings},
	journal = {Canadian Journal of Microbiology},
	volume = {40},
	number = {12},
	year = {1994},
	pages = {993{\textendash}999},
	publisher = {NRC Research Press},
	author = {Zacheus, Outi M and Martikainen, Pertti J}
}
