00361nas a2200133   4500000000100000008004100001260000900042100001600051700002800067700002000095700001700115245005600132856003900188       2012                            d  bIEEE1 aDavide Vega1 aLlorenç Cerdà-Alabern1 aLeandro Navarro1 aRoc Meseguer00aTopology patterns of a community network: Guifi.net  u/sites/default/files/dsg/paper.pdf