- Paul Hudak; John Peterson; Joseph Fasel. A Gentle Introduction to Haskell, chapter on case expressions and pattern matching. https://www.haskell.org/tutorial/patterns.html
- Simon Peyton Jones. The implementation of Functional Programming Languages, pages 53-103. http://research.microsoft.com/en-us/um/people/simonpj/papers/slpj-book-1987/index.htm 3.Christopher Strachey. Fundamental Concepts in Programming Languages, page 11 for explanation of currying. http://www.cs.cmu.edu/~crary/819-f09/Strachey67.pdf
- J.N. Oliveira. An introduction to pointfree programming. http://www.di.uminho.pt/~jno/ps/iscalc_1.ps.gz
- Manuel Alcino Pereira da Cunha. Point-free Program Calculation. http://www4.di.uminho.pt/~mac/Publications/phd.pdf