^Spitzer, M. (1990) On defining delusions. Comprehensive Psychiatry, 31 (5), 377-97
^ Young, A.W. (2000).Wondrous strange: The neuropsychology of abnormal beliefs. In M. Coltheart & M. Davis (Eds.) Pathologies of belief (pp.47-74). Oxford: Blackwell. ISBN 0-631-22136-0
^Jones, E. (1999) The phenomenology of abnormal belief. Philosophy, Psychiatry and Psychology, 6, 1-16.
^ Maher, B.A. (1988) Anomalous experience and delusional thinking: The logic of explanations. In T. Oltmanns and B. Maher (eds) Delusional Beliefs. New York: Wiley Interscience. ISBN 0-471-83635-4