1. Bardin, C., 1971. Les Efflorescences. Report of the Centre Technique des Tuiles et Briques. Paris, France.
2. Bardin, C., 1988. Le comportement des matières premières à la cuisson–sélection des conditions optimales de cuisson. Report of the Centre Technique des Tuiles et des Briques. Paris, France.
3. Desulfurization of pyrite;Blachére;Journal of the American Ceramic Society,1966
4. Fundamentals factors influencing efflorescence of clay products;Brownell;Journal of the American Ceramic Society,1949
5. Retention of sulfates by fired clay products;Brownell;Journal of The American Ceramic Society,1960