Björn, Anders, Jana Björn, and Nageswari Shanmugalingam. “Classification of Metric Measure Spaces and Their Ends Using P-Harmonic Functions”. Annales Fennici Mathematici 47, no. 2 (July 16, 2022): 1025–1052. Accessed August 17, 2022. https://afm.journal.fi/article/view/120618.