SHCHIGOLEV, V.K. Variational iteration method for studying perihelion precession and deflection of light in General Relativity. International Journal of Physical Research, [S. l.], v. 4, n. 2, p. 52–57, 2016. DOI: 10.14419/ijpr.v4i2.6530. Disponível em: https://sciencepubco.com/index.php/IJPR/article/view/6530.. Acesso em: 2 may. 2024.