1. AFNOR, 2004. EN 13286-7—Unbound and Hydraulically Bound Mixtures—Part 7: Cyclic Load Triaxial Test for Unbound Mixtures.
2. Anderson, W.F., Fair, P., 2008. Behavior of railroad ballast under monotonic and cyclic loading. Journal of Geotechnical and Geoenvironmental Engineering, 134(3): 316–327. [doi:10.1061/(ASCE)1090-0241(2008)134:3 (316)]
3. Barksdale, R.D., 1972. Laboratory Evaluation of Rutting in Base Course Materials. Proceedings of the Third International Conference on Structural Design of Asphalt Pavement, 3:161–174.
4. Brooks, R.H., Corey, A.T., 1964. Hydraulic Properties of Porous Media. Hydrology Papers, No. 3, Colorado State University, Fort Collins, Colorado.
5. Brown, S.F., 1974. Repeated load testing of a granular material. Journal of Geotechnical Engineering, 100(7):825–841.