Coelho, M. S., C. E. Fontana, A. S. Kato, A. S. de Martin, and C. E. da S. Bueno. “Effects of Glide Path on the Centering Ability and Preparation Time of Two Reciprocating Instruments”. Iranian Endodontic Journal, vol. 11, no. 1, Jan. 2016, pp. 33-37, doi:10.22037/iej.v11i1.9314.