Shear- and vibration-induced order-disorder transitions in granular media M. Pica Ciamarra, A. Coniglio, D. De Martino and M. Nicodemi Eur. Phys. J. E, 24 4 (2007) 411-415 Published online: 17 January 2008 DOI: 10.1140/epje/i2007-10256-6