Muñoz Becerra F. The doppelgänger phenomenon in "The Strange Case of Dr. Jekyll and Mr. Hyde". Revista de Filosofía UCSC [Internet]. 2023 Oct. 20 [cited 2026 Nov. 12];22(2):171-85. Available from: https://revistas.ucsc.cl/index.php/revistafilosofia/article/view/2049