AL-SAPHORY, R. A. M. REGIONAL EXPONENTIAL GENERAL OBSERVABILITY IN DISTRIBUTED PARAMETER SYSTEMS. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 11, n. 4, p. 5167–5183, 2015. DOI: 10.24297/jam.v11i4.1262. Disponível em: https://rajpub.com/index.php/jam/article/view/3584. Acesso em: 22 jul. 2024.