O'Mahony, Anthony (18 November 2021). "Louis Massignon, the Seven Sleepers of Ephesus and the Christian-Muslim pilgrimage at Vieux-Marché, Brittany". In Bartholomew, Craig; Hughes, Fred (eds.). Explorations in a Christian Theology of Pilgrimage. Routledge. pp. 126–149. ISBN978-1-351-93766-5. Archived from the original on 22 May 2024. Retrieved 31 January 2024.
O'Mahony, Anthony (18 November 2021). "Louis Massignon, the Seven Sleepers of Ephesus and the Christian-Muslim pilgrimage at Vieux-Marché, Brittany". In Bartholomew, Craig; Hughes, Fred (eds.). Explorations in a Christian Theology of Pilgrimage. Routledge. pp. 126–149. ISBN978-1-351-93766-5. Archived from the original on 22 May 2024. Retrieved 31 January 2024.