1. Barry M. E., McAlister, A. B. and Coombes P. J. (2005) Modelling the Urban Water Cycle in South East Queensland, Environmental Engineering Society Conference: Creating Sustainable Engineering Solutions, Sydney 2005.
2. Coombes P.J.(2006) Development of a Regional Model to Understand the Energy and Economic Impacts of Rainwater Tanks in Urban Areas. 30th Hydrology and Water Resources Symposium 4 - 7 December 2006 Launceston, Tasmania.
3. Coombes P.J., Jayakody C., Anson C. and Foster G. (2006) Development, Analysis and Monitoring of a WSUD and IWCM strategy for The Groves project in Mernda Victoria. 30th Hydrology and Water Resources Symposium 4 - 7 December 2006 Launceston, Tasmania.
4. Coombes P.J. and Lucas S. (2006) Towards Sustainable Water Strategies in the Perth Region of Western Australia: Inclusion of decentralized systems. 1st National HYDROPOLIS Conference 2006, Burswood Convention Centre, Perth, Western Australia.
5. Coombes (2005). Integrated Water Cycle Management: Analysis of resource security. Water, March edition, Australian Water Association, Sydney.