Packet transport along the shortest pathways in scale-free networks C.-M. Ghim, E. Oh, K.-I. Goh, B. Kahng and D. Kim Eur. Phys. J. B, 38 2 (2004) 193-199 Published online: 14 May 2004 DOI: 10.1140/epjb/e2004-00113-2