Hillstrom E.L., Strachan M. (februari 2000). Strong commitment to traditional Protestant religious beliefs is negatively related to beliefs in paranormal phenomena. Psychological Reports86 (1): p. 183-189. PMID10778269. Geraadpleegd op 27 juli 2011. "This may partly reflect opinions of Christians in the samples who take biblical sanctions against many "paranormal" activities seriously."