1. Sleep as a problem of localization;von Economo;J Nerv Ment Dis,1930
2. Normal human sleep: an overview;Carskadon,2000
3. Neurophysiology of sleep: basic mechanisms underlying control of wakefulness and sleep;McCarley,1999
4. Sleep and wakefulness;Stevens,2003
5. A manual of standardized terminology, techniques, and scoring system for sleep stages of human subjects;Rechtschaffen,1968