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- Recursive Functions of Symbolic Expressions and Their Computation (1960) [pdf] http://jmc.stanford.edu/articles/recursive/recursive.pdf 2 comments
- Recursive Functions of Symbolic Expressions and Their Computation (1960) http://www-formal.stanford.edu/jmc/recursive/recursive.html 6 comments
- Recursive Functions of Symbolic Expressions Computation by Machine (1960) http://www-formal.stanford.edu/jmc/recursive/recursive.html 13 comments
- Recursive Functions of Symbolic Expressions and Their Computation by Machine http://www-formal.stanford.edu/jmc/recursive.html 4 comments