Cartwright, Dustin A., María Angélica Cueto, and Enrique A. Tobis. “The Maximum Independent Sets of De Bruijn Graphs of Diameter 3”. The Electronic Journal of Combinatorics 18, no. 1 (October 3, 2011): P194. Accessed March 16, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v18i1p194.