@incollection{Aadi21, author = {El Hassan Zerrik and Abderrahman Ait Aadi}, title = {Gradient Optimal Control of the Bilinear Reaction–Diffusion Equation}, booktitle = {Recent Developments in the Solution of Nonlinear Differential Equations}, publisher = {IntechOpen}, address = {Rijeka}, year = {2021}, editor = {Bruno Carpentieri}, chapter = {18}, doi = {10.5772/intechopen.96041}, url = {https://doi.org/10.5772/intechopen.96041} }