Adler, Ilan, Jesús A. De Loera, Steven Klee, and Zhenyang Zhang. “Diameters of Cocircuit Graphs of Oriented Matroids: An Update”. The Electronic Journal of Combinatorics 28, no. 4 (December 3, 2021): P4.40. Accessed March 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v28i4p40.