Schredl, Michael, Josie Henley-Einion, and Mark Blagrove. “Lucid Dreaming in Children: The UK Library Study”. International Journal of Dream Research 5, no. 1 (April 27, 2012): 94-98. Accessed October 25, 2020. https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/9274.