M. A. Kadhim and M. Q. Abdullah, “Generation and Stress Analysis of Helical Gear Tooth Combining Involute with Epicycloidal and Hypocycloidal Profiles”, Int. J. Automot. Mech. Eng., vol. 22, no. 1, pp. 12016–12034, Feb. 2025, doi: 10.15282/ijame.22.1.2025.6.0923.