H`a, Huy T`ai, Graham Keiper, Hasan Mahmood, and Jonathan L. O’Rourke. “Density of $f$-Ideals and $f$-Ideals in Mixed Small Degrees”. MATHEMATICA SCANDINAVICA 128, no. 1 (February 24, 2022). Accessed November 21, 2024. https://www.mscand.dk/article/view/129244.