1. Lecture Notes in Computer Science;O. Chitil,2007
2. Lecture Notes in Computer Science;O. Chitil,2004
3. Claessen, K., Hughes, R.J.M.: QuickCheck: a lightweight tool for random testing of Haskell programs. In: Proc. 5th Intl. ACM Conference on Functional Programming, pp. 268–279. ACM Press, New York (2000)
4. Lecture Notes in Computer Science;N.A. Danielsson,2004
5. Findler, R.B., Felleisen, M.: Contracts for higher-order functions. In: ICFP 2002, pp. 48–59. ACM Press, New York (2002)