1. Anderton R. Bridges P. H. Leeder M. R. Sellwood B. W. (1979) A Dynamic Stratigraphy of the British Isles—A Study in Crustal Evolution (George Allen & Unwin Ltd, London).
2. Deep seismic reflection profiling between England, France and Ireland
3. Brooks M. (1965) in Geology of the country around Wells and Cheddar, eds Green G. W. Welch F. B. A. (HMSO, London), pp 149–161.
4. Mesozoic reactivation of Variscan thrusting in the Bristol Channel area, UK
5. Gravity measurements in Great Britain;Bullard;Monthly Notices of the Royal Astronomical Society Geophysical Supplement,1936