BEASLEY, Leroy B. Zero forcing, graphs on $k$ parallel paths, and linear preservers. Journal of Algebra Combinatorics Discrete Structures and Applications, [S. l.], v. 10, n. 2, p. 97–103, 2023. DOI: 10.13069/jacodesmath.v10i2.229. Disponível em: https://jacodesmath.com/index.php/jacodesmath/article/view/229. Acesso em: 12 sep. 2026.