00339nas a2200121   4500000000100000008004100001100001500042700001800057700002000075245005900095856004900154300001400203       2015                            d1 aRoger Baig1 aFelix Freitag1 aLeandro Navarro00aOn the Sustainability of Community Clouds in guifi.net  uhttps://doi.org/10.1007/978-3-319-43177-2_18  a265–278