Eu, Sen-Peng, and Tung-Shan Fu. “A Simple Proof of the Aztec Diamond Theorem”. The Electronic Journal of Combinatorics 12, no. 1 (April 20, 2005): R18. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v12i1r18.