Uniaxial compression of 2d and 3d packings : electrical conductivity measurements M. Ammi, T. Travers, D. Bideau, A. Gervois, J.C. Messager et J.P. TroadecJ. Phys. France, 49 2 (1988) 221-226DOI: https://doi.org/10.1051/jphys:01988004902022100