Simon L. Peyton Jones. Classes, Jim, But Not as We Know Them - Type Classes in Haskell: What, Why, and Whither. In Sophia Drossopoulou, editor, ECOOP 2009 - Object-Oriented Programming, 23rd European Conference, Genoa, Italy, July 6-10, 2009. Proceedings. Volume 5653 of Lecture Notes in Computer Science, pages 1, Springer, 2009. [doi]
Abstract is missing.