SJÖLN, P. An inequality for convex curves in the plane. MATHEMATICA SCANDINAVICA, [S. l.], v. 40, p. 293–300, 1977. DOI: 10.7146/math.scand.a-11696. Disponível em: https://www.mscand.dk/article/view/11696. Acesso em: 22 nov. 2024.