1. Provably computable functions and the fast growing hierarchy;Buchholz,1987
2. A short proof of two recently discovered independence proofs using recursion theoretic methods;Cichon,1983
3. Subrecursive hierarchies via direct limits;Dennis-Jones,1984
4. Rapidly growing Ramsey functions;Ketonen;Ann. of Math.,1981
5. Subrecursion: Functions and Hierarchies;Rose,1984