SHEN, Yansheng. Ground state solutions for a critical fractional Laplacian equation in unbounded domains: existence and regularity. Topological Methods in Nonlinear Analysis. Online. 28 December 2024. Vol. 64, no. 2, pp. 621 - 653. [Accessed 27 December 2025]. DOI 10.12775/TMNA.2024.020.