Klaus Frovin Jørgensen. Functional interpretation and the existence property. Math. Log. Q., 50(6):573-576, 2004. [doi]
@article{Jorgensen04-0, title = {Functional interpretation and the existence property}, author = {Klaus Frovin Jørgensen}, year = {2004}, doi = {10.1002/malq.200410004}, url = {http://dx.doi.org/10.1002/malq.200410004}, researchr = {https://researchr.org/publication/Jorgensen04-0}, cites = {0}, citedby = {0}, journal = {Math. Log. Q.}, volume = {50}, number = {6}, pages = {573-576}, }