WANG, CHANGYUAN; DU, BEILIANG. Existence of Generalized Howell designs of side n + 1 and order 3n. Utilitas Mathematica , [S. l.], v. 80, 2009. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/602. Acesso em: 8 may. 2026.