Erde, Joshua, Bruno Golénia, and Sylvain Golénia. “The Closed Knight Tour Problem in Higher Dimensions”. The Electronic Journal of Combinatorics 19, no. 4 (October 25, 2012): P9. Accessed March 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v19i4p9.