ALTOUM, Sami H. Lie group and RK4 for solving nonlinear first order ODEs. International Journal of Applied Mathematical Research, [S. l.], v. 5, n. 2, p. 117–122, 2016. DOI: 10.14419/ijamr.v5i2.6033. Disponível em: https://sciencepubco.com/index.php/ijamr/article/view/6033.. Acesso em: 3 may. 2024.