1.
Ku CY, Wong KB. A Deza–Frankl Type Theorem for Set Partitions. Electron. J. Combin. [Internet]. 2015Mar.30 [cited 2026Mar.15];22(1):P1.84. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v22i1p84