HAYNSWORTH, W. HUGH; SARVATE D.G. Ternary 1-designs (V,B;ρ1,pρ2,R; K). Utilitas Mathematica , [S. l.], v. 50, 1996. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/24. Acesso em: 8 may. 2026.