“Blow-up Rate Estimates and Blow-up Set for a System of Two Heat Equations With Coupled Nonlinear Neumann Boundary Conditions”. Iraqi Journal of Science 61, no. 1 (January 27, 2020): 147–152. Accessed April 7, 2025. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1479.