Participatory urban planning through online webGIS platform: operations and tools. - Eleni Mougiakou; Anastasia Christaki; Giouli Athousaki; Theodoros Vakkas; George Velegrakis; Pantelis Mitropoulos; Thanos Andritsos; Dimitris Poulios; Kostas Vourekas; Sofia Tsadari; Anastasios Manos; Spyros Tzortzis (ICEGOV, 2020)