MALIAUKIENĖ, Livija. About the equivalent replaceability of the double induction axiom. Lietuvos matematikos rinkinys, [S. l.], v. 50, n. proc. LMS, p. 253–257, 2009. DOI: 10.15388/LMR.2009.45. Disponível em: https://journals.vu.lt./LMR/article/view/17973. Acesso em: 3 apr. 2025.