zvereva, Ekaterina, and larisa lutskovskaia. “The Problem of Dualism in the Works of C. Ruiz Zafon”. International Journal of Psychosocial Rehabilitation 24, no. 6 (June 30, 2020): 9835–9842. Accessed August 16, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/7514.