Tart, C. & Gackenbach, J.I. (1988). A discussion between Charles Tart and Lucidity Letter editor, Jayne Gackenbach, examining similarities between dream lucidity, witnessing and self-remembering. Lucidity Letter, 7(2) and reprinted in Lucidity: Commemorative Issue 10th Anniversary of Lucidity Letter, 10(1&2), 121-128.