Walach, H. (2009) Spirituality: the legacy of parapsychology. In: Roe, C. A., Kramer, W. and Coly, L. (eds.) Utrecht II: Charting the Future of Parapsychology (2008). New York, USA: Parapsychology Foundation Inc. pp. 363-386.
Walach, H., Kohls, N., Von Stillfried, N., Hinterberger, I. and Schmidt, S. (2009) Spirituality: the legacy of parapsychology.Archive for the Psychology of Religion/Archiv für Religionspychologie.31(3), pp. 277-308. 0084-6724.
Walach, H. (2008) Spirituality as a resource. Invited Presentation presented to: Bavarian University Summit, Benediktbeuren, Germany, 26 May 2008. (Unpublished)
Walach, H. (2008) Spirituality as a resource. Lecture presented to: Royal College of Psychiatrists, London, 29 February 2008. (Unpublished)