1.
Frati F, Kaufmann M, Pach J, Tóth C, Wood D. On the Upward Planarity of Mixed Plane Graphs. JGAA [Internet]. 2014 May 1 [cited 2025 May 1];18(2):253-79. Available from: https://www.jgaa.info/index.php/jgaa/article/view/paper322