Dai , XiaoqiangYang , ChaoHuang , Shaobin and Wu , Fei. (2020). Quenching Time Estimates for Semilinear Parabolic Equations Controlled by Two Absorption Sources in Control System.
            <i>Journal of Partial Differential Equations</i>. <i>33</i> (1).
            39-47.
         doi:10.4208/jpde.v33.n1.3