1. A proposed standard lithostratigraphic nomenclature for the central and northern North Sea;Deegan,1977
2. Chalk reservoir of the West Ekofisk Field;D'Heur,1980
3. Valhall Field — A structural/stratigraphic trap;Hardman,1977
4. Chalk reservoirs of the Hod Field, Norway;Hardman,1980
5. Aspects of chalk sedimentation in the southern Norwegian offshore;Kennedy,1980