1. Fenomeni di deformazione gravitativa profonda (deep-seated gravitational slope deformations) osservati nella Sicilia occidentale;Agnesi;Bolletino Societa Geologica ltaliana,1984
2. Landslip at the Isle of Portland;Anon;Geologist,1859
3. The Jurassic System of Great Britain;Arkell,1933
4. The Geology of the Country around Weymouth, Swanage, Corfe and Lulworth;Arkell;Memoirs of the Geological Survey,1947
5. A statistical study of the cliff top slumps in part of the Christchurch Bay coastal cliffs;Barton;Earth Surface Processes and Landforms,1983