QUEK, T. S.; YAP, Leonard Y. H. Sharpness of Young’s inequality for convolution. Mathematica Scandinavica, Berkeley, CA, United States, v. 53, p. 221–237, 1983. DOI: 10.7146/math.scand.a-12030. Disponível em: https://journals.msp.org/mscand/article/view/1639. Acesso em: 25 jul. 2026.