1. Adornato DC, Gildenberg PL, Ferrario CM, Smart J, Frost EAM (1978) Pathophysiology of intravenous air embolism in dogs. Anesthesiology 49:120–127
2. Bickford RG, Billinger TW, Flemming N, Stewart L (1972) The compressed spectral array (CSA). A pictorial EEG. Proc San Diego Biomed Symp 11: 365–370
3. Brandt L, Erdmann K (1988) Beeinflussung des Elektroenzephalogramms durch Anäs-thetikakombinationen — die Bedeutung des Lachgases. In: Brandt L (Hrsg) Cerebrales Monitoring in der Anästhesie. Bibliomed, Melsungen, S 151–172
4. Brechner TM, Brechner VL (1977) An audible alarm for monitoring air embolism during neurosurgery. J Neurosurg 47:201–204
5. Demetrescu M (1975) The aperiodic character of the electroencephalogram (EEG): A new approach to data analysis and condensation. Physiologist 18:189