SECCO, Silvia. Fractional integration along homogeneous curves in $R^3$. Mathematica Scandinavica, Berkeley, CA, United States, v. 85, n. 2, p. 259–270, 1999. DOI: 10.7146/math.scand.a-18275. Disponível em: https://journals.msp.org/mscand/article/view/932. Acesso em: 24 jul. 2026.