1. Sleepiness as a consequence of shift work;Akerstedt;Sleep,1988
2. A 3-minute reasoning test based on grammatical transformations;Baddeley;Psychon. Sci.,1968
3. Psychophysiological and behavioral effects of bright and dim light;Badia;Sleep Res.,1990
4. Logical processes in the resolution of orientation conflict (Report 259);Benson,1963
5. Bright light treatment of sleep disturbance in the elderly;Campbell,1990