Conference Smart City Expo 2015 The presentations of the “ST 23 Sustainable cities and innovative urban planning” of the Smart City Expo 2015, can now be downloaded here. December 18, 2015/by Polyhedra http://polyhedra.tech/wp-content/uploads/2015/09/6d154-logo1.png 128 235 Polyhedra http://polyhedra.tech/wp-content/uploads/2020/05/Logo-Nom-v2.jpg Polyhedra2015-12-18 18:59:242015-12-18 18:59:24Smart City Expo 2015