Liu, Hong, Maryam Sharifzadeh, and Katherine Staden. “On the Maximum Number of Integer Colourings With Forbidden Monochromatic Sums”. The Electronic Journal of Combinatorics 28, no. 1 (March 26, 2021): P1.59. Accessed March 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v28i1p59.