1. Biriotti , M. 2007 Keeping the Dialogue Going. An Evaluation and Outcomes for Guides Employed by Dialogue in the Dark Worldwide
2. On Dialogue
3. Transformative Education;Boyd;International Journal of Lifelong Education,1988
4. Cohen , O. 2005 Dialogue in the Dark Exhibition: Long Term Survey, Evaluation Report
5. Cohen , O. 2006 Dialogue in the Dark: What Are Its Consequences and How Can They Be Proved? An Evaluation of the Exhibition Dialogue in the Dark Hamburg, Germany www.dialogue-in-the-dark.com/files/DiD_VisitorsEvaluation_2006.pdf