Neuhäusler, Annabelle, Michael Schredl, and Anja S. Göritz. “General Knowledge about Lucid Dreaming and Lucid Dream Induction Techniques: An Online Study”. International Journal of Dream Research 11, no. 2 (November 1, 2018): 179–185. Accessed October 5, 2022. https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/50491.