1. Application of Laser Doppler Vibrometer to non-intrusive diagnostic of fresco damage;Castellini,1994
2. Use of FRF measurements as a non-destructive tool to detect detachments of frescoes;D'Ambrogio,1994
3. Development of a measurement procedure for non-invasive detection of fresco detachments;Castellini,1995
4. Modal Testing: Theory and Practice;Ewins,1984