Fröhner, Klaus-Dieter, and Jürgen Zabel. “Collaborative Aspects for Installing E-Business in a Maintenance Environment”. Business: Theory and Practice 8, no. 4 (December 27, 2007): 189-194. Accessed November 17, 2024. https://jcem.vgtu.lt/index.php/BTP/article/view/11515.