Varga, László. “Combinatorial Nullstellensatz Modulo Prime Powers and the Parity Argument”. The Electronic Journal of Combinatorics 21, no. 4 (November 27, 2014): #P4.44. Accessed May 13, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v21i4p44.