The role of the urban system dysfunction in the assessment of seismic risk in the Mt. Etna area (Italy) - Meroni F.; Zonno G.; Azzaro R.; D?Amico S.; Tuvè T.; Oliveira C.; Ferreira M.; Mota de Sá F.; Brambilla C.; Rotondi R.; Varini E. (Bulletin of Earthquake Engineering, 2016)