Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Eberhard Herrmann. Definable Structures in the Lattice of Recursively Enumerable Sets. Journal of Symbolic Logic, 49(4):1190-1197, 1984.
Abstract is missing.