MACINTYRE, Angus. Martin’s Axiom Applied to Existentially Closed Groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 32, p. 46–56, 1973. DOI: 10.7146/math.scand.a-11445. Disponível em: https://journals.msp.org/mscand/article/view/2166. Acesso em: 25 jul. 2026.