De Boeck, Maarten, and Geertrui Van de Voorde. “A New Lower Bound for the Size of an Affine Blocking Set”. The Electronic Journal of Combinatorics 25, no. 4 (November 30, 2018): P4.40. Accessed March 29, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v25i4p40.