Dolinka, Igor, and Éva Jungábel. “Finite Homomorphism-Homogeneous Permutations via Edge Colourings of Chains”. The Electronic Journal of Combinatorics 19, no. 4 (November 1, 2012): #P17. Accessed May 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v19i4p17.