1. Block-geometry functions characterizing transport in densely fissured media;Barker;J. Hydrol.,1985
2. Barker, J.A., Wright, T., Fretwell, B.A., 2000. A pulsed-velocity method of double porosity solute transport modelling. In Dassargues, editor. International Conference on Tracers and Modelling in Hydrogeology. IAHS, Liège, Belgium.
3. Beaven, R.P., Barker, J.A. and Hudson, A., 2003. Description of a tracer test through waste and application of a double porosity model, Sardinia 2003: Proceedings of the Ninth International Waste Management and Landfill Symposium, Margherita di Pula, Cagliari, Sardinia, Italy.
4. Beaven, R.P, Woodman, N. D., Barker, J.A., 2005. End-member flushing models for ‘saturated’ waste Proc. Sardinia 2005, Tenth International Waste Management and Landfill Symposium S. Margherita di Pula, Cagliari, Italy.
5. A new economic instrument for financing accelerated landfill aftercare;Beaven;Waste Manag.,2014