R. L. Goodstein, J. Hooley. On recursive transcendence. Notre Dame Journal of Formal Logic, 1(4):127-137, 1960. [doi]
@article{GoodsteinH60,
title = {On recursive transcendence},
author = {R. L. Goodstein and J. Hooley},
year = {1960},
doi = {10.1305/ndjfl/1093956617},
url = {http://dx.doi.org/10.1305/ndjfl/1093956617},
researchr = {https://researchr.org/publication/GoodsteinH60},
cites = {0},
citedby = {0},
journal = {Notre Dame Journal of Formal Logic},
volume = {1},
number = {4},
pages = {127-137},
}