Xianglin W. A Proof of Erdős-Fishburn’s Conjecture for $g(6)=13$. Electron. J. Combin. [Internet]. 2012Dec.6 [cited 2026Mar.17];19(4):P38. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v19i4p38