Nino-Barrera, Javier Laureano, et al. “Comparison of Mechanical and Structural Properties of Nickel-Titanium Alloy With Titanium-Molybdenum Alloy and Titanium-Niobium Alloy As Potential Metals for Endodontic Files”. Iranian Endodontic Journal, vol. 16, no. 1, Jan. 2021, pp. 49-55, doi:10.22037/iej.v16i1.24048.