Ashyralyev, Allaberen, and Deniz Agirseven. “On Source Identification Problem for a Delay Parabolic Equation”. Nonlinear Analysis: Modelling and Control 19, no. 3 (October 30, 2014): 335–349. Accessed April 27, 2025. https://journals.vu.lt./nonlinear-analysis/article/view/13639.