Sharp, Brian, Katie Perkins, Taylor Keracher, and Laura Lehman. “Beware of the Parallel-Replacement Zombies”. Ohio Journal of School Mathematics 90, no. 1 (March 17, 2022): 23–27. Accessed November 21, 2024. https://ohiomathjournal.org/index.php/OJSM/article/view/8715.