Cristina, Maria. “Spooky Art: How They Met Themselves by Dante Gabriel Rossetti.” Medium, 26 Oct. 2020, maria-cristina.medium.com/spooky-art-how-they-met-themselves-by-dante-gabriel-rossetti-6458122bfdd6. Accessed 25 Mar. 2026.

Little, Tom. “Tracing the Development of the Doppelgänger.” Atlas Obscura, 6 Nov. 2017, www.atlasobscura.com/articles/history-doppelganger. Accessed 25 Mar. 2026.

Hoffmeister, Gerhart. "Siebenkäs". The Literary Encyclopedia. First published 20 January 2007 [https://www.litencyc.com/php/sworks.php?rec=true&UID=21602, accessed 25 March 2026.]

Aysa. “Dante Gabriel Rossetti – How They Met Themselves.” Byron’s Muse, 30 Oct. 2024, byronsmuse.wordpress.com/2024/10/30/dante-gabriel-rossetti-how-they-met-themselves/.