PUTHENPURAKAL, T. J. A function on the set of isomorphism classes in the stable category of maximal Cohen-Macaulay modules over a Gorenstein ring: with applications to liaison theory. MATHEMATICA SCANDINAVICA, [S. l.], v. 120, n. 2, p. 161–180, 2017. DOI: 10.7146/math.scand.a-25728. Disponível em: https://www.mscand.dk/article/view/25728. Acesso em: 17 jan. 2022.