DUNG, Nguyen V. A note on hereditary rings or non-singular rings with chain condition. Mathematica Scandinavica, Berkeley, CA, United States, v. 66, p. 301–306, 1990. DOI: 10.7146/math.scand.a-12313. Disponível em: https://journals.msp.org/mscand/article/view/1311. Acesso em: 25 jul. 2026.