A Predicative Approach to Nonstandard Mathematics

Peter Zahn. A Predicative Approach to Nonstandard Mathematics. Math. Log. Q., 33(1):85-96, 1987. [doi]

@article{Zahn87-0,
  title = {A Predicative Approach to Nonstandard Mathematics},
  author = {Peter Zahn},
  year = {1987},
  doi = {10.1002/malq.19870330111},
  url = {http://dx.doi.org/10.1002/malq.19870330111},
  researchr = {https://researchr.org/publication/Zahn87-0},
  cites = {0},
  citedby = {0},
  journal = {Math. Log. Q.},
  volume = {33},
  number = {1},
  pages = {85-96},
}