Frati F, Fulek R, Ruiz-Vargas A. On the Page Number of Upward Planar Directed Acyclic Graphs. JGAA [Internet]. 2013 Mar. 1 [cited 2025 Dec. 6];17(3):221-44. Available from: https://jgaa-v5.cs.brown.edu/index.php/jgaa/article/view/paper292