Dyck, Sophie, Nina Kummer, Nina König, Michael Schredl, and Anja Kühnel. 2018. “Effects of Lucid Dream Induction on External-Rated Lucidity, Dream Emotions, and Dream Bizarreness”. International Journal of Dream Research 11 (1):74-78. https://doi.org/10.11588/ijodr.2018.1.43867.