Alvarado, Carlos S. “Early Psychical Research Reference Works: Remarks on Nandor Fodor’s Encyclopaedia of Psychic Science”. Journal of Scientific Exploration 34, no. 4 (December 24, 2020): 717-754. Accessed June 12, 2024. https://journalofscientificexploration.org/index.php/jse/article/view/1785.