FRÖHNER, Klaus-Dieter; ZABEL, Jürgen. Collaborative aspects for installing e-business in a maintenance environment. Business: Theory and Practice, [S. l.], v. 8, n. 4, p. 189–194, 2007. DOI: 10.3846/btp.2007.27. Disponível em: https://journals.vilniustech.lt/index.php/BTP/article/view/11515. Acesso em: 10 may. 2025.