1. Ebersole J. Cortical generators and EEG voltage fields. In: Ebersole JS, Pedley TM, editors. Current practice of clinical electroencephalography. 3rd ed. New York: Lippincott Williams and Wilkins; 2003. p. 12–31.
2. Heuser D, Guggenberger H. Ionic changes in brain ischaemia and alterations produced by drugs. Br J Anaesth. 1985;57:23–33. https://doi.org/10.1093/bja/57.1.23.
3. Connolly MB, Sharbrough FW, Wong PK. Electrical fields and recording techniques. In: Ebersole JS, Pedley TA, editors. Current practice of clinical electroencephalography. 3rd ed. Lippincott Williams &Wilkins; 2003. p. 72–99.
4. Klem GH. Artifacts. In: Ebersole JS, Pedley TA, editors. Current practice of clinical electroencephalography. 3rd ed. Lippincott Williams &Wilkins; 2003. p. 271–87.
5. Rampil IJ. A primer for EEG signal processing in anesthesia. Anesthesiology. 1998;89:980–1002.