Sen Ming, Jiayi Du, Jin Xie & Xiao Wu. (2024). Blow-Up of Solutions to Boundary Value Problems of Coupled Wave Equations with Damping Terms on Exterior Domain.
            <i>Journal of Mathematical Study</i>. <i>57</i> (2).
            194-222.
         doi:10.4208/jms.v57n2.24.05