Di Giacomo, Emilio, Walter Didimo, Giuseppe Liotta, and Pietro Palladino. “Visual Analysis of One-To-Many Matched Graphs”. Journal of Graph Algorithms and Applications 14, no. 1 (January 1, 2010): 97–119. Accessed June 30, 2024. https://jgaa.info/index.php/jgaa/article/view/paper200.