SAPHORY, R. A.; BAYATI, M. A. Regional Boundary Gradient Detectability in Distributed Parameter Systems. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 14, n. 2, p. 7818–7833, 2018. DOI: 10.24297/jam.v14i2.7478. Disponível em: https://www.rajpub.com/index.php/jam/article/view/7478. Acesso em: 18 may. 2024.