Devers, E., Robinson, M. K.: The making of a grounded theory: After death communication. Death Studies, 26(3); 241-53, 2002.
Dombeck, M. T.: Dream telling: A means of spiritual awareness. Holist Nurs Pract, 9(2); 37-47, 1995.
Hauser, M. J.: Special aspects of grief after a suicide. In E. J. Dunne, J. L. McIntosh, K. Dunne-Maxim (eds.) Suicide and Its Aftermath: Understanding and counseling the survivors, pp. 57-70, W. W. Norton & Company, New York, London, 1987.