Beasley LB. Zero forcing, graphs on $k$ parallel paths, and linear preservers. J. Algebra Comb. Discrete Struct. Appl. [Internet]. 2023 Apr. 10 [cited 2026 Sep. 12];10(2):97-103. Available from: https://www.jacodesmath.com/index.php/jacodesmath/article/view/229