1. Automated activated sludge plants with respiratory metabolism control;BROUZES,1969
2. ANDREWS, J. F. Kinetics and mathematical modeling. Ecological Aspects of Wastewater Treatment (HAWKES, H. A. and CURDS, C. R., eds.), Academic Press, London (to be published).
3. ANDREWS, J. F. and LEE, C. R. Dynamics and control of a multi-stage biological process. Proceedings IVth International Fermentation Symposium (TERUI, G., ed.), p. 35, Society of Fermentation Technology, Japan, Yamada-Kami, Suita-shi. Osaka, Japan, 1972.
4. BUSBY, J. B. and ANDREWS, J. F. Control strategies for the activated-sludge process. Proceedings this Conference, International Association on Water Pollution Research, Pergamon Press, Oxford, p. 343.
5. Practical results of step aeration;TORPEY;Sewage Works J.,1948