Danvy, O & Spivey, M 2007, On Barron and Strachey's Cartesian Product Function : Possibly the world's first functional pearl . in R Hinze & N Ramsey (eds), Proceedings of the 12th ACM SIGPLAN International Conference on Functional Programming, ICFP 2007 . Association for Computing Machinery, pp. 41-46, ICFP 2007: International Conference on Functional Programming, Freiburg, Germany, 01/10/2007 . https://doi.org/10.1145/1291151.1291161