1. Twenty-four hour secretion of melatonin is normal in narcoleptics;Ahmed;Sleep Res.,1991
2. Ultradian and circadian rhythms in sleep and wakefulness;Baldy-Moulinier,1976
3. Twenty-four hour polygraphic recordings in narcoleptics;Berti Ceroni,1968
4. Daytime sleep characteristics and their relationships with night sleep in the narcoleptic patients;Billiard;Sleep,1986
5. A two process model of sleep regulation;Borbély;Hum. Neurobiol.,1982