Curtis, T P Influence of pH, Oxygen, and Humic Substances on Ability of Sunlight To Damage Fecal Coliforms in Waste Stabilization Pond Water. [electronic resource] - Applied and environmental microbiology Apr 1992 - 1335-43 p. digital Publication Type: Journal Article ISSN: 0099-2240 Standard No.: 10.1128/aem.58.4.1335-1343.1992 doi