Freeman, D., Garety, P., & Kuipers, E. (2001). Persecutory delusions: Developing the understanding of belief maintenance and emotional distress.

Freeman, D., P. Garety, and E. Kuipers. Persecutory Delusions: Developing the Understanding of Belief Maintenance and Emotional Distress. 2001.

Freeman, D., et al. Persecutory Delusions: Developing the Understanding of Belief Maintenance and Emotional Distress. 2001.