Liu Yang & Xiaomeng Li. (2023). Extremal Functions for an Improved Trudinger-Moser Inequality Involving $L^p$-Norm in $\mathbb{R}^n$.
            <i>Journal of Partial Differential Equations</i>. <i>36</i> (4).
            414-434.
         doi:10.4208/jpde.v36.n4.7