Yuan, G. X. “Fixed Point Theorems for Continuous Single-Valued and Upper Semicontinuous Set-Valued Mappings in $p$-Vector and Locally $p$-Convex Spaces”. Topological Methods in Nonlinear Analysis, vol. 63, no. 1, Mar. 2024, pp. 209-25, doi:10.12775/TMNA.2023.027.