1. Titanium dioxide;Andersen,1967
2. Wrought alloy steel-stainless steels bars and semi-finished products,1986
3. Abrasives in dentifrices and prophylaxis pastes;Barbakow;Quintessence Int,1987
4. Blood titanium levels before and after oral administration of titanium dioxide;Bockmann;Pharmazie,2000
5. Minor and trace inorganic components of toothpastes;Brune;Scand J Dent Res,1980