FERRÁNDEZ, A.; MIQUEL, V. Hermitian natural tensors. Mathematica Scandinavica, Berkeley, CA, United States, v. 64, p. 233–250, 1989. DOI: 10.7146/math.scand.a-12256. Disponível em: https://journals.msp.org/mscand/article/view/1389. Acesso em: 25 jul. 2026.