SABRI, Mustafa A.; F. MOHOMME, Eman. Number of Spinal-Convex Polyominoes. Journal of Kufa for Mathematics and Computer, [S. l.], v. 6, n. 3, 2020. DOI: 10.31642/JoKMC/2018/060303. Disponível em: https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2066. Acesso em: 18 may. 2024.