1. Incremental stress-strain relations for sand;Barden,1968
2. A theory for the mechanical behaviour of sand;Brown,1964
3. On the use of symmetry to simplify the constitutive equations of isotropic materials with memeory;Coleman,1967
4. Some experiments on the influence of strain conditions on the strength of sand;Cornforth;Geotechnique,1964
5. Boden als Material mit veränderlicher Struktur: Eingrenzungen für Fliessgesetze;Gudehus,1967