Brown,D. K.;Simpson,S. G.(1986).“Which set existence axioms are needed to prove the separable Hahn–Banach theorem?”.Annals of Pure and Applied Logic31: 123–144.doi:10.1016/0168-0072(86)90066-7.Source of citation.
Brown,D. K.;Simpson,S. G.(1986).“Which set existence axioms are needed to prove the separable Hahn–Banach theorem?”.Annals of Pure and Applied Logic31: 123–144.doi:10.1016/0168-0072(86)90066-7.Source of citation.