Affili, Elisa, and Jukka T. Kemppainen. “Recurrence of the Random Process Governed With the Fractional Laplacian and the Caputo Time Derivative”. Bruno Pini Mathematical Analysis Seminar, vol. 14, no. 1, Jan. 2023, pp. 1-14, doi:10.6092/issn.2240-2829/17264.