Schröter, M. Group Statistical mechanics of granular media, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;
Jerkins, M., Schröter, M., Swinney, H.-L., Senden, T.-J., Saadatfar, M., & Aste, T. (2008). Onset of mechanical stability in random packings of frictional spheres. Physical Review Letters, 101: 018301. doi:10.1103/PhysRevLett.101.018301.