zvereva, Ekaterina, and larisa lutskovskaia. “The Problem of Dualism in the Works of C. Ruiz Zafon”. International Journal of Psychosocial Rehabilitation 24, no. 6 (August 31, 2020): 9835–9842. Accessed December 19, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/7774.