Kalmbach, S., Manz, W., Wecke, J., Szewzyk, U. 1999. Aquabacterium gen. nov., with description of Aquabacterium citratiphilum sp. nov., Aquabacterium parvum sp. nov. and Aquabacterium commune sp. nov., three in situ dominant bacterial species from the Berlin drinking water system. International Journal of Systematic Bacteriology. 49 : 769-777.