K. M. de J. Andrade and G. C. Araujo, “THE EQUATIONS OF THE MOVEMENT OF THE SPHERICAL PENDULUM THROUGH THE LAGRANGIAL MECHANICS”, EIC, pp. 94–107, Nov. 2025, Accessed: Jun. 13, 2026. [Online]. Available: https://periodicos.newsciencepubl.com/editoraimpacto/article/view/10040