Al-Saphory, Raheam, and Zinah A. Khalid. “Regional Boundary Asymptotic Gradient Full-Order Observer in Distributed Parabolic Systems”. JOURNAL OF ADVANCES IN MATHEMATICS 18 (January 14, 2020): 28–45. Accessed April 26, 2024. https://rajpub.com/index.php/jam/article/view/8543.