Enamel Remineralization by Toothpastes (SEM, EDX and 3D-stereomicrographic Study) - Gjorgievska E, Nicholson JW, Slipper IJ, Stevanovic M, Apostolska S, Jankulovska M, Pavlevska MV, Dimkov GjА. (International Dental Journal,2013;63 (1): 198-296, 2013)