@INBOOK{henk60, AUTHOR = {Marko van Eekelen and Maarten de Mol}, editor = {Erik Barendsen and Venanzio Capretta and Herman Geuvers and Milad Niqui}, TITLE = {Reflections on Type Theory, \lambda-calculus, and the Mind. Essays dedicated to Henk Barendregt on the Occasion of his 60th Birthday}, CHAPTER = {Proving Lazy Folklore with Mixed Lazy/Strict Semantics}, pages = {87-101}, PUBLISHER = {Radboud University Nijmegen}, YEAR = {2007} }