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2. Desynchronization and resynchronization of human circadian rhythms;Aschoff;Aerospace Med.,1969
3. The maximal capacity for sleep: Rapid eye movement density as an index of sleep satiety;Aserinsky;Biol. Psychiat.,1969
4. Vigilance before and after sleep;Baekeland;Percept. Mot. Skills,1970
5. Patterns of sleep in primates: Phylogenetic, psychophysiologic and pathologic effects;Bert,1978