1. Cost - effective sewage treatment - the creation of an optimising model,1975
2. Preliminary selection of waste treatment systems;Evenson;J.Water Pollut. Control Fed,1969
3. Optimization of the hidraulic regime of activated sludge systems;Erickson;J. Water Pollut. Control Fed,1968
4. Analysis of biological filter design;Galler;J. Sanit.Eng. Div.A.S.C.E,1964
5. Interactive computer design for wastewater treatment plants;Gemmel;Public Health Eng,1982