1. Nichtlineare Wellengleichungen 2. Ordnung auf Beschränkten Gebieten[D/OL];Li,1994
2. Estimations for the life-span of solutions for semilinear wave equations//Proceedings of the Workshop on Differential Equations V. Jan 10-11;Li,1997
3. On the semilinear wave equations (I);Li;Taiwanese J Mathematics,1989
4. Nonexistence of global solutions of Emden-Fowler type semilinear wave equations with non-positive energy;Li;Electronic Journal of Differential Equation,2016
5. Estimates for the life-span of the solutions for semilinear wave equations;Li;Communications on Pure and Applied Analysis,2008