Di Matteo, L., S. Brunelli, and E. Capponi. “Strenght Parameters of Compacted Cohesive Soils: Analysis of Sandy-Clayely Soils of the ‘Lisciani Di Pantalla’ (Todi – Central Italy)”. Italian Journal of Engineering Geology and Environment, no. 1, June 2008, pp. 25-32, doi:10.4408/IJEGE.2008-01.O-02.