Nagy, Zoltán Lóránt. “A Multipartite Version of the Turán Problem &Ndash; Density Conditions and Eigenvalues”. The Electronic Journal of Combinatorics 18, no. 1 (February 21, 2011): P46. Accessed March 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v18i1p46.