GOU, Haide. A study on approximate controllability of evolution systems with nonlocal conditions. Topological Methods in Nonlinear Analysis, [S. l.], v. 64, n. 1, p. 87–106, 2024. DOI: 10.12775/TMNA.2024.004. Disponível em: https://apcz.umk.pl/TMNA/article/view/55213. Acesso em: 15 dec. 2025.