Hlynsky Ya. М.; PANCHYSHYN, Yu. Yu. On the monotonicity and constancy of signs of some rational explicit methods for nonlinear systems of ordinary differential equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 47, n. 6, p. 848–852, 1995. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5477. Acesso em: 14 apr. 2025.