1.
Bošnjak I, Marković P. The $11$-element case of Frankl’s conjecture. Electron. J. Combin. [Internet]. 2008Jul.6 [cited 2026Mar.28];15(1):R88. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v15i1r88