1. Coombes, P. J. 2002, “Rainwater tanks revisited: new opportunities for urban water cycle management”, PhD thesis, University of Newcastle, Australia.
2. Coombes, P. J. 2006, “On-Site Water Balance Modeling using PURRS (Probabilistic Urban Rainwater and wastewater Reuse Simulator) User Guide”, Urban Water Cycle Solutions.
3. Coombes, P. J. & Barry, M. E. 2006, “The effect of selection of time steps and average assumptions on the simulation of rainwater harvesting”, WSUD and UDM International Conference, Melbourne, Australia.
4. Coombes, P. J. & Kuczera, G. 2003, “Analysis of the performance of rainwater tanks in Australian capital cities”, Proceedings of the 28 th International Hydrology and Water Resources Symposium, Wollongong, Australia.
5. DSE, 2006, Climate change in Victoria: a summary, Department of Sustainability and Environment, Victoria, Australia.