ALVARADO, Carlos S. On First Volumes and Beginnings in the Study of Psychic Phenomena: Varieties of Investigative Approaches. Journal of Scientific Exploration, [S. l.], v. 29, n. 1, 2015. Disponível em: https://journalofscientificexploration.org/index.php/jse/article/view/791. Acesso em: 25 may. 2026.