LÜLL, M. WLB in Zahlen 2014. WLBforum, Stuttgart, v. 17, n. 1, p. 53, 2015. DOI: 10.53458/wlbf.v17i1.288. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/wlbf/article/view/288. Acesso em: 10 aug. 2022.