Goodrich, C. P., Liu, A. J., &; Nagel, S. R. (2014). Comment on “Repulsive contact interactions make jammed particulate systems inherently nonharmonic.”https://doi.org/10.1103/physrevlett.112.049801__Physical Review Letters. American Physical Society.https://doi.org/10.1103/physrevlett.112.049801 
LibreCat: https://research-explorer.ista.ac.at/record/7771
DOI: 10.1103/physrevlett.112.049801
arXiv: 1306.1285

Goodrich, C. P., Liu, A. J., &; Nagel, S. R. (2012). Finite-size scaling at the jamming transition. Physical Review Letters. American Physical Society.https://doi.org/10.1103/physrevlett.109.095704 
LibreCat: https://research-explorer.ista.ac.at/record/7776
DOI: 10.1103/physrevlett.109.095704