LIU, Zhenhai, LU, Liang and GUO, Xiufeng. Existence results for a class of semilinear differential variational inequalities with nonlocal boundary conditions. Topological Methods in Nonlinear Analysis. Online. 6 May 2020. Vol. 55, no. 2, pp. 429 - 449. [Accessed 22 July 2024].