Three cases of legionnaires' disease associated with a contaminated warm water system at a campsite in Austria, June 2004 R Strauss and K Fillafer and E Grund and D Schmid and J Stirling and C Bruns and G Wewalka and H Hrabcik, Weekly releases (1997–2007), 8, 2544 (2004), https://doi.org/10.2807/esw.08.37.02544-en