1. Antimitotic recursively enumerable degrees;Ambos-Spies;Z. Math. Logik Grundlag Math.,1985
2. K. Ambos-Spies and P. Fejer, Degree theoretic splitting properties of recursively enumerable sets, J. Symbolic Logic, to appear.
3. K. Ambos-Spies, S.B. Cooper and C. Jockusch, Some relationships between Turing and weak truth table degrees, in preparation.
4. An algebraic decomposition of the recursively enumerable degrees and the coincidence of several degree classes with the promptly simple degrees;Ambos-Spies;Trans. Amer. Math. Soc.,1984
5. S.B. Cooper, A jump class of noncappable degrees, to appear.