* “Cortical spreading depression (CSD): A neurophysiological correlate of migraine aura”, "Schmerz", May 17, 2008, Richter F, Lehmenkühler A.
* "Cortical spreading depression (CSD): A neurophysiological correlate of migraine aura", "Schmerz", May 17, 2008, Richter F, Lehmenkühler A.