Magnanini, Rolando. “Alexandrov, Serrin, Weinberger, Reilly: Simmetry and Stability by Integral Identities”. Bruno Pini Mathematical Analysis Seminar 8, no. 1 (January 1, 2017): 121–141. Accessed May 8, 2024. https://mathematicalanalysis.unibo.it/article/view/7800.