TYMN, Michael Egon. Communication with The Spirit World of God: Its Laws and Purpose. Extraordinary Experiences of a Catholic Priest by Johannes Greber. Journal of Scientific Exploration, [S. l.], v. 27, n. 4, 2014. Disponível em: https://journalofscientificexploration.org/index.php/jse/article/view/657. Acesso em: 2 jun. 2026.