1. Benton, N., Hyland, M.: Traced premonoidal categories. ITA 37(4), 273–299 (2003)
2. Bird, R.S.: A calculus of functions for program derivation. In: Turner, D. (ed.) Research Topics in Functional Programming. Addison-Wesley, Reading (1990)
3. Carlsson, M., Hallgren, T.: FUDGETS - A graphical user interface in a lazy functional language. In: Proceedings of the ACM Conference on Functional Programming and Computer Architecture, Copenhagen. ACM, New York (1993)
4. Claessen, K., Hughes, J.: Quickcheck: A lightweight tool for random testing of Haskell programs. In: International Conference on Functional Programming (ICFP), ACM SIGPLAN (2000)
5. Courtney, A., Elliott, C.: Genuinely functional user interfaces. In: Haskell Workshop, Firenze, Italy, pp. 41–69 (2001)