Peter Zahn. A Nonstandard Delta Fundion in a Predicative Theory. Math. Log. Q., 41:257-260, 1995.
@article{Zahn95,
title = {A Nonstandard Delta Fundion in a Predicative Theory},
author = {Peter Zahn},
year = {1995},
researchr = {https://researchr.org/publication/Zahn95},
cites = {0},
citedby = {0},
journal = {Math. Log. Q.},
volume = {41},
pages = {257-260},
}