1. Structure and Interpretation of Computer Programs;Abelson,1996
2. Recursion as a human universal and as a primitive;Arsenijević;Biolinguistics,2010
3. On recursive definitions in empirical science;Bar-Hillel,1953
4. What numbers could not be;Benacerraf;Philos. Rev.,1965
5. Recursion: core of complexity or artifact of analysis?;Bickerton,2009