BOUTOULOUT, A.; BOURRAY, H.; KHAZARI, A. Gradient observability and sensors for hyperbolic systems. INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY, [S. l.], v. 10, n. 2, p. 1356–1375, 2013. DOI: 10.24297/ijct.v10i2.3302. Disponível em: https://rajpub.com/index.php/ijct/article/view/3302. Acesso em: 4 may. 2024.