1. The use of microgranites in the porcelain stoneware tile production;Ravagli;Ceramica Informazione,1993
2. Schüller, K. H. Process Mineralogy of Ceramic Materials; Chapter. 1. W. Baumgart. Ferdinand Enke, Stuttgart, Germany, 1984.
3. Workshop on porcelain stoneware tile, Modena 10th June 1999;Biffi;Ceramica Informazione,1999
4. Descamps, P., Tirlocq, J., Deletter, M. and Cambier, F. The composite approach for the reinforcement of ceramic floor tiles. In: Procedings of Qualicer 2000, p. P.GI 379-394, Castellon, Spain, 2000.
5. Gafforio, P., Correlation between microstructure and mechanical properties of porcelain stoneware. Bachelor thesis, University of Modena, 1997.