Louis-Julien Guillemette Stefan Monnier Type-Safe Code Transformations in Haskell. 23-39 2007 174 Electr. Notes Theor. Comput. Sci. 7 http://dx.doi.org/10.1016/j.entcs.2006.10.036 db/journals/entcs/entcs174.html#GuillemetteM07