Joseph R. Shoenfield. A Relative Consistency Proof. Journal of Symbolic Logic, 19(1):21-28, 1954.
@article{Shoenfield54, title = {A Relative Consistency Proof}, author = {Joseph R. Shoenfield}, year = {1954}, tags = {consistency}, researchr = {https://researchr.org/publication/Shoenfield54}, cites = {0}, citedby = {0}, journal = {Journal of Symbolic Logic}, volume = {19}, number = {1}, pages = {21-28}, }