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Aux frontières de l'urbain / At the frontiers of Urban spaceAvignon (France), 22-23 January 2014Conference proceeding / Actes de la conférenceDownload here: http://www.geo.univ-avignon.fr/Coll-Villes_Actes.htmAt the International conference "At the Frontiers of  Urban Space. Small towns of the world: emergence, growth, economic and social role, territorial integration, governance"  were exposed various issues concerning the bottom of the urban hierarchy:Comparative approach: India, Europe, Africa, Latin America…Small towns, networks and mobilitySmall town and land issuesUrban systems and hierarchiesEmerging towns: genesis and historyRole of politics, role of spontaneous urbanisationSmall town economySmall towns and sustainable development