Mayer, Gerhard A. “Sleep Paralysis: Historical, Psychological, and Medical Perspectives by Brian A. Sharpless and Karl Doghramji”. Journal of Scientific Exploration 30, no. 1 (March 16, 2016). Accessed April 20, 2024. https://journalofscientificexploration.org/index.php/jse/article/view/995.