BELIGIANNIS, Apostolos. Homotopy theory of modules and Gorenstein rings. Mathematica Scandinavica, Berkeley, CA, United States, v. 89, n. 1, p. 5–45, 2001. DOI: 10.7146/math.scand.a-14329. Disponível em: https://journals.msp.org/mscand/article/view/876. Acesso em: 24 jul. 2026.