1. AGNEW, H. W., WEBB, W. B., & WILLIAMS, R. L. The first night effect: An EEG study of sleep. Psychophysiology, 1966, 2, 263–266.
2. CURZON, G., & GREEN, A. R. Effects of immobilization on rat liver tryptophan pyrrolase and brain 5-hydroxytryptamine metabolism. British Journal of Pharmacology, 1969, 37, 689–697.
3. EMDE, R. M., HAMON, R. J., METCALF, D. R., KOENIG, K. L., & WAGONFELD, S. Effects of stress on neonatal sleep. Psychophysiology, 1970, 7, 340.
4. HOBSON, J. A. Sleep after exercise. Science, 1968a, 162, 1503–1505.
5. HOBSON, J. A. Sleep as a response. II. Temperature as a possible agent of fatigue-induced somnolence. Psychophysiology, 1968b, 5, 225.