1. Influence of basement on the geometry of Permo-Triassic basins in the northwest British Isles.,1995
2. Anon. 1994. Hydrogeological Map of Northern Ireland. 1:250 000. British Geological Survey, Keyworth.
3. Atkinson, T. C. & Smart, P. L. 1981. Artificial tracers in hydrogeology. In: A Survey of British Hydrogeology. The Royal Society, London, 173–190.
4. Experiments in tracing underground waters in limestones
5. L'aquifere karstique. Sa definition, ses characteristiques et son identification.;Mem. H. Ser. Soc. Geol. France,,1980