1. Algase, D., Whall, A., 1993. Rosemary Ellis views on the substantive structure in nursing. Image: Journal of Clinical Nursing 4, 81–92.
2. Boros, L., 1970. Living in hope. Herder and Herder, New York.
3. Brueggemann, W., 1987. Hope within history. John Knox Press, Atlanta, Georgia.
4. Chick, N., Meleis, A., 1986. Transitions: A nursing concern. In: Chinn, P.L. (Ed.), Nursing research methodology. Issues and implementation. Aspen, Rockville, pp. 237–257.
5. Chinn, P.L., Kramer, M., 1991. Theory and nursing: A systematic approach, 3rd ed. Mosby, St. Louis.