ABATANGELO, Nicola. Higher-order fractional Laplacians: An overview. Bruno Pini Mathematical Analysis Seminar, [S. l.], v. 12, n. 1, p. 53–80, 2021. DOI: 10.6092/issn.2240-2829/14184. Disponível em: https://mathematicalanalysis.unibo.it/article/view/14184. Acesso em: 23 dec. 2024.