Intrakul, Jumpot, and Smith Yokpaisan Iampiboonvatana. “Corrigendum to ‘Retracting a Ball in $\ell_1$ onto Its Simple Spherical Cap’ (Topol. Methods Nonlinear Anal. 63 (2024), no.1, 115-129)”. Topological Methods in Nonlinear Analysis 65, no. 2 (June 14, 2025): 827–828. Accessed February 11, 2026. https://apcz.umk.pl/TMNA/article/view/62305.