ASSEM, I.; SKOWRONSKI, A. Indecomposable Modules over Multicoil Algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 71, p. 31–61, 1992. DOI: 10.7146/math.scand.a-12409. Disponível em: https://journals.msp.org/mscand/article/view/1241. Acesso em: 24 jul. 2026.