Brena, Camillo, Francesco Nobili, and Enrico Pasqualetto. “Maps of Bounded Variation from PI Spaces to Metric Spaces”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE 26, no. 3 (October 31, 2025): 1475-1519. Accessed March 3, 2026. https://journals.sns.it/index.php/annaliscienze/article/view/6098.