Király, Zoltán, and Lilla Tóthmérész. “On Ryser’s Conjecture for $t$-Intersecting and Degree-Bounded Hypergraphs”. The Electronic Journal of Combinatorics 24, no. 4 (December 22, 2017): P4.40. Accessed March 29, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v24i4p40.