J. Wallis, “Review of ’The Spiritual Revolution: Why Religion Is Giving Way to Spirituality’ by P. Heelas L. Woodhead, B. Seel, B. Szerszynski and K. Tusting”, FIRN, vol. 1, no. 2, pp. 200–201, Sep. 2005, doi: 10.1558/firn.v1i2.200.