Schredl, Michael, and Meryem Basak. “A Diary Study of Dream Recall: Successful Dream Recall and Contentless Dreams”. International Journal of Dream Research 13, no. 1 (March 30, 2020): 123–126. Accessed April 24, 2024. https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/70982.