Olaf Chitil Zoltán Horváth Viktória Zsók Implementation and Application of Functional Languages, 19th International Workshop, IFL 2007, Freiburg, Germany, September 27-29, 2007. Revised Selected Papers 5083 2008 978-3-540-85372-5 IFL Lecture Notes in Computer Science Springer db/conf/ifl/ifl2007.html