The following publications are possibly variants of this publication:
- Fragments of bounded arithmetic and the lengths of proofsPavel Pudlák. JSYML, 73(4):1389-1406, 2008. [doi]
- Bounded arithmetic, propositional logic, and complexity theoryJan Krajícek. Volume 60 of Encyclopedia of mathematics and its applications, Cambridge University Press, 1995.
- NP search problems in low fragments of bounded arithmeticJan Krajícek, Alan Skelley, Neil Thapen. JSYML, 72(2):649-672, 2007. [doi]