Caputo, Emanuele, Jesse Koivu, and Tapio Rajala. “Sobolev, BV and Perimeter Extensions in Metric Measure Spaces”. Annales Fennici Mathematici 49, no. 1 (March 12, 2024): 135–165. Accessed May 11, 2024. https://afm.journal.fi/article/view/143899.