VIGNE, L.; ROOKMAAKER, K.; SMITH, K.; ROBOVSKÝ, J.; DOWNIE, S.; MAVRANDONIS, L.; SINHA, S.; BORNER, M.; KAKIRA, L.; MARCHAIS, J.; MCGRAW, B. SPECIAL 50th issue—Pachyderm past and present. Pachyderm, [S. l.], v. 50, p. 107–132, 2011. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/466. Acesso em: 6 may. 2024.