1. Individual differences;Berch,1984
2. Human arousal and efficiency in performing vigilance tasks;Broadbent;Discovery,1961
3. Vigilance performance under hypoxia: II. Effect of work-rest schedule;Cahoon;Perceptual and Motor Skills,1970
4. Attention, skill, and intelligence: Some speculations on extreme individual differences in human performance;Carr,1984
5. The effect of a short rest pause on inspection efficiency;Colquhoun;Ergonomics,1959