1) Kuroiwa K, Celesia G C. Clinical significance of periodic EEG patterns. Arch Neurol 1980; 37: 15-20.
2) Alajouanine T H, Lecasble R, Rémond A. Eléments graphiques paroxystiques lents de survenue périodique. Correlations électrocliniques. Rev Neurol 1955; 93: 477-8.
3) Chatrian G E, Cheng-Mei S, Leffman H. The significance of periodic lateralized epileptiform discharges in EEG: an electrographic, clinical and pathological study. Electroencephalogr Clin Neurophysiol 1964; 17: 177-93.
4) Hughes J R, Schlagenhauff R E. The periodically recurring focal discharge. Epilepsia 1965; 6: 156-66.
5) Markand O N, Daly D D. Pseudoperiodic lateralized paroxysmal discharges in electroencephalogram. Neurology (NY) 1971; 21: 975-81.