Geiger, Jakob, Cornelsen, Sabine, Haunert, Jan-Henrik, Kindermann, Philipp, Mchedlidze, Tamara, Nöllenburg, Martin, Okamoto, Yoshio, Wolff, Alexander. ClusterSets: Optimizing Planar Clusters in Categorical Point Data. Computer Graphics Forum, volume 40, number 3, pages 471-481, 2021.