GILMER, Robert; O'MALLEY, Matthew. Non-Noetherian Rings for which Each Proper Subring is Noetherian. Mathematica Scandinavica, Berkeley, CA, United States, v. 31, p. 118–122, 1972. DOI: 10.7146/math.scand.a-11418. Disponível em: https://journals.msp.org/mscand/article/view/2226. Acesso em: 25 jul. 2026.