ALLWEIN, G.; YANG, Y.; HARRISON, W. L. Qualitative decision theory via channel theory. Logic and Logical Philosophy, [S. l.], v. 20, n. 1-2, p. 81–110, 2011. DOI: 10.12775/LLP.2011.005. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2011.005. Acesso em: 1 dec. 2023.