1. Campbell AM: Night nurses' competence. Competences from the perspective of health care pedagogics Report 1998:1. Edited by: Pilhammar Andersson E. 1998, Gothenburg: The intitution of health care pedagogics, [In Swedish]
2. Kemp J: Nursing at night. Journal of Advanced Nursing. 1984, 9 (2): 217-223. 10.1111/j.1365-2648.1984.tb00363.x.
3. Zerubavel E: Patterns of time in hospital life. 1987, Chicago: The University of Chicago Press
4. The law of National Health. [In Swedish]. [
http://www.notisum.se
]
5. The National Board of Health and Welfare, delegating work tasks in health care and dental service. [
http://www.socialstyrelsen.se/
]