Hindman, Neil, Dona Strauss, and Luca Q. Zamboni. “Combining Extensions of the Hales-Jewett Theorem With Ramsey Theory in Other Structures”. The Electronic Journal of Combinatorics 26, no. 4 (October 25, 2019): P4.23. Accessed March 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v26i4p23.