Wulf, Gabriele MPI for Psychological Research (Munich, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
MacKay, D. G., Wulf, G., Yin, C., & Abrams, L. (1993). Relations between Word Perception and Production - New Theory and Data on the Verbal Transformation Effect. Journal of Memory and Language, 32(5), 624-646.