Pikhurko, Oleg. “The Maximal Length of a Gap Between $r$-Graph Turán Densities”. The Electronic Journal of Combinatorics 22, no. 4 (October 30, 2015): #P4.15. Accessed April 18, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v22i4p15.