PUTHENPURAKAL, Tony J. Invariants of linkage of modules. Mathematica Scandinavica, Berkeley, CA, United States, v. 127, n. 2, p. 223–242, 2021. DOI: 10.7146/math.scand.a-125992. Disponível em: https://journals.msp.org/mscand/article/view/155. Acesso em: 24 jul. 2026.