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2. Seismic damage in historic town centers and attenuation criteria;Giuffrè;Ann Geofis,1995
3. Safety and conservation of historical centers: the Ortigia case,1993
4. Definition of collapse mechanisms and seismic vulnerability of historic masonry buildings;D’Ayala;Earthquake Spectra,2003
5. Seismic vulnerability of monumental buildings;Augusti;Struct Saf,2001