1. Aanonsen, A. (1959). Medical problems of shift work. Industrial Medicine and Surgery 28: 422–427. 145
2. Akerstadt, T. and Gillberg, M. (1981). Sleep disturbance and shift work. In Reinberg, A., Vieux, N. and Andlauer, P. (eds.) Advances in the Biosciences, Vol. 30: Night and Shift Work Biological and Social Aspects. Pergamon Press: Oxford, Eng., pp. 127–137. 145
3. Akerstadt, T. and Torsvall, L. (1980). Age, sleep, and adjustment to shift work. In Koella, W.P. (ed.) Sleep 1980. S. Karger: Basel, pp. 190–195. 145
4. Albers, H., Gerall, A.A. and Axelson, J.F. (1981). Circadian rhythm dissociation in the rat: Effects of long-term constant illumination. Neuroscience Letters 25: 89–94. DOI: https://doi.org/10.1016/0304-3940(81)90106-3 138
5. Athanassenas, G. and Walters, C.L. (1981). Sleep after transmeridian flights. In Reinberg, A., Vieux, N and Andlauer, P. (eds.) Advances in the Biosciences, Vol. 30: Night and Shift Work: Biological and Social Aspects. Pergamon Press: Oxford, Eng., pp. 139–147. 142