On the Wheeler-deWitt equation for homogeneous cosmological models Stefan Reuter, Hans-J\"urgen Schmidt Abstract. We derive the Wheeler-deWitt equation for fourth order gravity, specialized to isotropic Friedmann models. Some special solutions are found. Keywords: Wheeler-deWitt equation, Fourth order gravity. PACS-Classification: 9880 Cosmology. AMS-Classification: 83F05 Relativistic Cosmology.