5M. T. Blanco - Varela, A. Palomo, F. Puertas, and T. Va zquez, "CaF2 and CaSO4 in White Cement Clinker Production, " Cem. Concr. Res. ,9 [351105 - 13(1997).
6Aloui T. C F. Tunisian Neogene Sand Used in Portland White Cement [J]. American Ceramic Society Bulletin [H. W. Wilson - AST]. 2007, 86(8) :39.