1. Immortal remains: The Evidence for Life After Death;Braude,2003
2. Is There an Afterlife? A Comprehensive Overview of the Evidence;Fontana,2005
3. Mediumship and Survival: A Century of Investigations;Gauld,1983
4. A preliminary study of the acceptance by non-recipients of medium’s statement to recipients;Robertson;Journal of the Society for Psychical Research,2001
5. Accuracy and replicability of anomalous after-death communication across highly skilled mediums;Schwartz;Journal of the Society for Psychical Research,2001