Luke, David ORCID: 0000-0003-2141-2453 (2012) Psychoactive substances and paranormal phenomena: A comprehensive review. International Journal of Transpersonal Studies, 31 (1). pp. 97-156. ISSN 1321-0122 (Print), 1942-3241 (Online)

Michael, Pascal, Luke, David ORCID: 0000-0003-2141-2453 and Robinson, Oliver ORCID: 0000-0002-6758-2223 (2024) Smokable "vine of the dead": two case studies of experiencers of both changa and near-death experiences. International Journal of Transpersonal Studies:94. pp. 1-24. ISSN 1321-0122 (Print), 1942-3241 (Online)