König, Nina, Luisa M. Heizmann, Anja S. Göritz, and Michael Schredl. “Colors in Dreams and the Introduction of Color TV in Germany: An Online Study”. International Journal of Dream Research 10, no. 1 (January 11, 2025): 59–64. Accessed April 25, 2025. https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/34577.