M. Bekos, M. Kaufmann, A. Symvonis, and A. Wolff. Proc. 12th Int. Sympos. Graph Drawing (GD'04), volume 3383 of Lecture Notes in Computer Science, page 49--59. Springer-Verlag, (2005)
P. Kindermann, T. Mchedlidze, T. Schneck, and A. Symvonis. Proceedings of the 27th International Symposium on Graph Drawing and Network Visualization (GD'19), volume 11904 of Lecture Notes in Computer Science, page 416--429. Springer-Verlag, (2019)