ENOCHS, Edgar E. The first term in a minimal pure injective resolution. Mathematica Scandinavica, Berkeley, CA, United States, v. 65, p. 41–49, 1989. DOI: 10.7146/math.scand.a-12263. Disponível em: https://journals.msp.org/mscand/article/view/1387. Acesso em: 24 jul. 2026.