1. An evaluation of direct simple shear tests on clay;Airey;Geotechnique,1987
2. The NGI mm samplers for undisturbed sampling of clays and representative sampling of coarse material;Andresen,1979
3. Shear strength of normally consolidated clays;Berre,1973
4. Effect of consolidation time on triaxial and direct simple shear tests;Berre;NGI Internal Report,1985
5. Direct simple shear tests on a Norwegian quick clay;Bjerrum;Geotechnique,1966