Tolsa, Xavier, and Joan Verdera. “May the Cauchy Transform of a Non-Trivial Finite Measure Vanish on the Support of the Measure?”. Annales Fennici Mathematici 31, no. 2 (August 1, 2006): 479–494. Accessed November 25, 2024. https://afm.journal.fi/article/view/135171.