van Dobben de Bruyn, J. and Gijswijt, D. 2023. On the Size of Subsets of $\mathbb{F}_q^n$ Avoiding Solutions to Linear Systems with Repeated Columns. The Electronic Journal of Combinatorics. 30, 4 (Oct. 2023), P4.1. DOI:https://doi.org/10.37236/10883.