F. L. Romano, G. M. B. Ambrosano, M. B. B. de A. Magnani, and D. F. Nouer, “ Analysis of the coefficient of variation in shear and tensile bond strength tests ”, J Appl Oral Sci, vol. 13, no. 3, pp. 243–246, Sep. 2005, doi: 10.1590/S1678-77572005000300008.