ANTUNES, G.O., F.A. ARARUNA, and L.A. MEDEIROS. “Simultaneous Controllability for a System With Resistance Term”. Trends in Computational and Applied Mathematics 3, no. 1 (June 1, 2002): 31–40. Accessed July 3, 2024. https://tema.sbmac.org.br/tema/article/view/421.