Salas S., A., Castillo H., J., & Restrepo R., C. (2015). The Jacobi elliptic functions and their applications in the advance of mercury’s perihelion. Revista Mexicana De Física, 61(5 Sept-Oct), 392–0. Retrieved from https://rmf.smf.mx/ojs/index.php/rmf/article/view/4168