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.
Edward L. Robertson. Complexity Classes of Partial Recursive Functions (Preliminary Version). In Conference Record of Third Annual ACM Symposium on Theory of Computing, 1971, Shaker Heights, Ohio, USA. pages 258-266, ACM, 1971.