1. AASHTO, 2000, “Determining the resilient modulus of soils and aggregate materials”, standard: T 307-99 in Standard Specifications for Transportation Materials and Methods of Sampling and Testing, 20th ed’n., Am. Assoc. State Highway & Transportation Eng’rs., Washington, DC.
2. Brown, S.F., 1996, “Soil mechanics in pavement engineering”, Geotechnique 46(3), pp. 382–426.
3. Brüll, A., 1983, “Effets mécaniques de l’eau interstitielle – Détermination des modules complexes de déformation longitudinale et de cisaillement des sols en fonction de la succion”, Centre de Recherches Routières, Bruxelles, Belgique, 180pp.
4. CEN, 2002, “Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road construction”, Comité Européen de Normalisation, European standard EN 13242.
5. CEN, 2004, “Unbound and hydraulically bound mixtures – Part 7: Cyclic load triaxial test for unbound mixtures”, Comité Européen de Normalisation, European standard EN 13286-7.