ZUHRI, A. H.; SOEHARYADI, Y.; WIDJAJA, J. On Conditions for Controllability and Local Regularity of A System of Differential Equations. Journal of the Indonesian Mathematical Society, [S. l.], v. 29, n. 2, p. 259–270, 2023. DOI: 10.22342/jims.29.2.1584.259-270. Disponível em: http://jims-a.org/index.php/jimsa/article/view/1584. Acesso em: 17 may. 2024.