Björn, Anders, and Jana Björn. 2020. “A Uniqueness Result for Functions With Zero Fine Gradient on Quasiconnected and Finely Connected Sets”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE 21 (special, 1-2):293-301. https://doi.org/10.2422/2036-2145.201802_014.