1. Akaike H (1974) A new look at the statistical model identification. IEEE Trans Autom Control 19:716–723
2. Azzaro R (2004) Seismicity and active tectonics in the Etna region: constraints for a seismotectonic model. In: Bonaccorso A, Calvari S, Coltelli M, Del Negro C, Falsaperla S (eds) Mt. Etna: Volcano Laboratory, vol 143. AGU Geophysical Monograph, Washington DC, pp 205–220
3. Azzaro R, Barbano MS, Moroni AM, Mucciarelli M, Stucchi M (1999) The seismic history of Catania. J Seismol 3:235–252
4. Azzaro R, Barbano MS, D’Amico S, Tuvè T, Albarello D, D’Amico V (2008) First study of probabilistic seismic hazard assessment in the volcanic region of Mt. Etna (southern Italy) by means of macroseismic intensities. Boll Geof Teor Appl 49(1):77–91
5. Azzaro R, Carocci CF, Maugeri M, Torrisi A (2010) Microzonazione sismica del versante orientale dell’Etna. Studi di primo livello. Regione Siciliana, Dipartimento della Protezione Civile, Le Nove Muse Editrice, Catania, ISBN 978-88-87820-45-4. http://sit.protezionecivilesicilia.it/index.php?option=com_content&view=article&id=24&Itemid=133