Pohlers Wolfram. Pure proof theory. Aims, methods and results. The bulletin of symbolic logic, vol. 2 (1996), pp. 159–188.
Mints, G.Volume:
63
Language:
english
Journal:
The Journal of Symbolic Logic
DOI:
10.2307/2586735
Date:
September, 1998
File:
PDF, 237 KB
english, 1998