Becker, C., Gramann, K., Müller, H. J., & Elliott, M. A. (2009). Electrophysiological correlates of flicker-induced color hallucinations. Consciousness and Cognition, 18(1), 266-276.
Becker, C., & Elliott, M. A. (2006). Flicker-induced color and form: Interdependencies and relation to stimulation frequency and phase. Consciousness and Cognition, 15(1), 175-196.