Dorothy M.D.M.SchullianDorothy M.D.M., The Dancing Pilgrims at Muelebeek, „Journal of the History of Medicine and Allied Sciences”, 32 (3), Oxford University Press, 1977, s. 315–319, DOI: 10.1093/jhmas/xxxii.3.315, PMID: 326865.
Dorothy M.D.M.SchullianDorothy M.D.M., The Dancing Pilgrims at Muelebeek, „Journal of the History of Medicine and Allied Sciences”, 32 (3), Oxford University Press, 1977, s. 315–319, DOI: 10.1093/jhmas/xxxii.3.315, PMID: 326865.
Robert ER.E.BartholomewRobert ER.E., Little green men, meowing nuns, and head-hunting panics, Jefferson, N.C.: McFarland, 2001, ISBN 978-0-7864-0997-6, OCLC45791388. Brak numerów stron w książce
Marc D.M.D.FeldmanMarc D.M.D., Stranger than fiction: when our minds betray us, Jacqueline M.J.M.Feldman, RoxenneR.Smith, wyd. 1st ed, Washington, DC: American Psychiatric Press, 1998, s. 191, ISBN 978-0-88048-930-0, OCLC36648261.