1. The Occurrence of Microorganisms in Water Main Encrustations.;Allen;Journal AWWA.,1980
2. Nagy , L.A. Olson , B.H. Occurrence and Significance of Bacteria, Fungi, and Yeasts Associated with Distribution Pipe Surfaces. Proc. AWWA WQTC, Houston, Texas 1985
3. Olson , B.H. Ridgeway , H.F. Means , E.G. Bacterial Colonization of Mortar-Lined and Galvanized-Iron Water Distribution Mains. Proc. AWWA Ann. Conf., St. Louis, Mo. 1981
4. Bacterial, Chemical, and Mineralogical Characteristics of Tubercles in Distribution Pipelines.;Touvinen;Journal AWWA,1980
5. Aerobic and Anaerobic Microorganisms in Tubercles From the Columbus Ohio Water Distribution System.;Touvinen;Applied Envir. Microbiol.,1982