1. Sleep duration and the power spectral density of the EEG;Åkerstedt;Electroenceph. clin. Neurophysiol.,1986
2. Application of compressed spectral array in clinical EEG;Bickford,1973
3. A sleep analysis system as a model of automation of clinical electroencephalography;Frost,1973
4. Principles of automatic analysis of sleep records with a hybrid system;Gaillard;Comp. biomed. Res.,1973
5. CSA somnogram - a multiparameter spectral sleep display;Hanson,1974