Lian, Chunbo, Bin Ge, Qinghai Cao, and Yu Zhang. “Infinitely Many Positive Solutions for a Double Phase Problems Involving the Double Phase Operator”. Topological Methods in Nonlinear Analysis 64, no. 2 (September 21, 2024): 493–507. Accessed May 3, 2025. https://apcz.umk.pl/TMNA/article/view/55343.