E. Pandeli, S. Corti, M. Franceschelli, and E. Pecchioni, “THE VARICOLOURED SLATES OF THE GRÀSSERA UNIT (CENTRAL-EASTERN ELBA, TUSCANY): PETROGRAPHICAL-MINERALOGICAL DATA AND COMPARISONS WITH OTHER TUSCAN AND LIGURIAN-PIEDMONTESE UNITS”, Ofioliti, vol. 26, no. 2a, pp. 197-206, Mar. 2007.