1. Hem , J. D. Cropper , W. H. Survey of Ferrous-Ferric Chemical Equilibria and Redox Potentials USGS Water Supply Papers 1459-A 1959
2. Oxygenation of Ferrous Iron;Stumm;Ind. & Eng. Chem.,1961
3. Oborn , E. T. Hem , J. D. Microbiologic Factors in the Solution and Transport of Iron USGS Water Supply Papers 1459-H 1961
4. Diatomite Filtration for Removal of Iron and Manganese;Coocan;Jour. AWWA,1962
5. Operation of Pressure v. Vacuum Diatomite Filters Using Iron-Containing Water;Baumann,1959