DRÖGE, S. Fachreferate in der neuen Fachgruppenstatistik. WLBforum, Stuttgart, v. 2, n. 1, p. 16–17, 2000. DOI: 10.53458/wlbf.v2i1.510. Disponível em: https://journals.wlb-stuttgart.de/index.php/wlbf/article/view/510. Acesso em: 1 juli. 2025.