Bachl, Sabine, Franz Brandenburg, and Daniel Gmach. “Computing and Drawing Isomorphic Subgraphs”. Journal of Graph Algorithms and Applications 8, no. 2 (January 1, 2004): 215–238. Accessed December 7, 2025. https://jgaa-v5.cs.brown.edu/index.php/jgaa/article/view/paper90.