Bosek, Bartłomiej, Jarosław Grytczuk, and William T. Trotter. “Local Dimension Is Unbounded for Planar Posets”. The Electronic Journal of Combinatorics 27, no. 4 (November 13, 2020): P4.28. Accessed April 4, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v27i4p28.