Liu, Xizhi, and Oleg Pikhurko. “A Note on the Minimum Size of Turán Systems”. The Electronic Journal of Combinatorics 33, no. 1 (January 9, 2026): P1.4. Accessed March 15, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v33i1p4.