1. Blumenfeld, R., Edwards, S. F., Walley, S. M.: Granular systems, In: Terentjev, E.M., Weitz, D.A. (eds.) The Oxford Handbook of Soft Condensed Matter, and References Therein. Oxford University Press, Oxford, (2015)
2. Seelig, R.P., Wulff, J.: The pressing operation in the fabrication of articles by powder metallurgy. Trans. AIME 166, 492 (1946)
3. Wakabayashi, T.: Photoelastic method for determination of stress in powdered mass. In: Proceedings of the 7th Japan National Congress of Applied Mechanics 153 (1957)
4. Dantu, P.: Contribution à l’étude mécanique et géométrique des milieux pulvérulents. In: Proceedings of the 4th International Conference on Soil Mechanics and Foundation Engineering. 144 (1957)
5. Howell, D., Behringer, R.P.: Fluctuations and dynamics for a two-dimensional sheared granular material. In: Behringer, R.P., Jenkins, J.T. (eds.) Powders and Grains 97, p. 337. Balkema, Rotterdam (1997)