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  1. The density of the nonbranching degrees.Peter A. Fejer - 1983 - Annals of Pure and Applied Logic 24 (2):113-130.
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  • Recursively Enumerable Sets of Positive Integers and Their Decision Problems.Emil L. Post - 1945 - Journal of Symbolic Logic 10 (1):18-19.
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  • Lattice embeddings into the recursively enumerable degrees. II.K. Ambos-Spies & M. Lerman - 1989 - Journal of Symbolic Logic 54 (3):735-760.
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  • Gerald E. Sacks. The recursively enumerable degrees are dense. Annals of mathematics, ser. 2 vol. 80 (1964), pp. 300–312. [REVIEW]Gerald E. Sacks - 1969 - Journal of Symbolic Logic 34 (2):294-295.
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  • A minimal pair of recursively enumerable degrees.C. E. M. Yates - 1966 - Journal of Symbolic Logic 31 (2):159-168.
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  • Lattice embeddings into the recursively enumerable degrees.K. Ambos-Spies & M. Lerman - 1986 - Journal of Symbolic Logic 51 (2):257-272.
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  • (1 other version)Review: A. H. Lachlan, Lower Bounds for Pairs of Recursively Enumerable Degrees. [REVIEW]Carl G. Jockusch - 1972 - Journal of Symbolic Logic 37 (3):611-611.
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  • The density of infima in the recursively enumerable degrees.Theodore A. Slaman - 1991 - Annals of Pure and Applied Logic 52 (1-2):155-179.
    We show that every nontrivial interval in the recursively enumerable degrees contains an incomparable pair which have an infimum in the recursively enumerable degrees.
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  • Lattice nonembeddings and initial segments of the recursively enumerable degrees.Rod Downey - 1990 - Annals of Pure and Applied Logic 49 (2):97-119.
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  • Sublattices of the Recursively Enumerable Degrees.S. K. Thomason - 1971 - Mathematical Logic Quarterly 17 (1):273-280.
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  • On Degrees of Recursive Unsolvability.Clifford Spector - 1957 - Journal of Symbolic Logic 22 (4):374-375.
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  • Two Recursively Enumerable Sets of Incomparable Degrees of Unsolvability.R. M. Friedberg - 1958 - Journal of Symbolic Logic 23 (2):225-226.
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