BJÖRK, Jan-erik. Lp Estimates for Convolution Operators Defined by Compactly Supported Distributions in Rn. Mathematica Scandinavica, Berkeley, CA, United States, v. 34, p. 129–136, 1974. DOI: 10.7146/math.scand.a-11513. Disponível em: https://journals.msp.org/mscand/article/view/2131. Acesso em: 25 jul. 2026.