Wadler, Philip (1990). "Deforestation: transforming programs to eliminate trees". Theoretical Computer Science. 73 (2): 231–248. http://homepages.inf.ed.ac.uk/

Wadler, Philip (1990). "Deforestation: transforming programs to eliminate trees". Theoretical Computer Science. 73 (2): 231–248. http://homepages.inf.ed.ac.uk/wadler/papers/deforest/deforest.ps http://homepages.inf.ed.ac.uk/wadler/papers/deforest/defores...