Fernando Ferreira. A Simple Proof of Parsons Theorem. Notre Dame Journal of Formal Logic, 46(1):83-91, 2005. [doi]
@article{Ferreira05-1, title = {A Simple Proof of Parsons Theorem}, author = {Fernando Ferreira}, year = {2005}, url = {http://projecteuclid.org/euclid.ndjfl/1107220675}, researchr = {https://researchr.org/publication/Ferreira05-1}, cites = {0}, citedby = {0}, journal = {Notre Dame Journal of Formal Logic}, volume = {46}, number = {1}, pages = {83-91}, }