1. Tahal, Ltd. Advanced Treatment, Groundwater Recharge and Re-use of Municipal Water. Dan Region and Winter Operation. Report for Mekerot Water Co. (March 1977).
2. R.L.H. Satchell and K.J. Edworthy, The Trent Research Programme, Vol.7. Artificial Recharge: Bunter Sandstone. Water Resources Board, Reading, 1972 (published by Her Majesty's Stationery Office).
3. K.M. Baxter and K.J. Edworthy, Impact of Sewage Effluent Recharge on Groundwater in an Area in S.E. England, Proc. Int. Symp. Artificial Recharge, Dortmund, May 1979.