1. MACCHI, Giorgio. Structural Diagnosis and Rehabilitation of Historical Buildings. Instituto Técnico de Materiales y Construcciones. Madrid n. 7, 1992.
2. BRAGA, Giovanni, GHIONNA, Vito, MACCHI, Giorgio. Paria Towers. The Contribution of Ceotechnical Engineering to the Preservation of Italian Historic Sites. AGI. ECSMFE, Florence, 1991.
3. BINDA, L., GATT1, G., MANGANO, G., POGGI, C, SACCHI-LANDRIANI, G. The Collapse of the Civic Tower of Pavia: a survey of the materials and structure. Masonry International n. 1, Stoke-on-Trent, 1992.