1. Modellazione matematica e fisica nello studio dell'instabilità per ribaltamento di ammassi rocciosi;Borri-Brunetto,1992
2. Physical and mathematical modelling of a jointed rock mass for the study of block toppling;Barla,1995
3. Validation of a distinct element model for toppling rock slopes;Barla,1995
4. UDEC—A generalized Distinct Element Program for modelling jointed rock;Cundall;Peter Cundall Associates, Report PCAR-1-80; European Research Office, U.S. Army, Contract DAJA37-79-C-0548, March,1980