1. Project Management Department, Tetra Pak, Wilhelm-Bergner-Straße 9c, 21509 Glinde, Germany
2. Project Management Department, University Medical Center Eppendorf, Martinistraße 52, 20251 Hamburg, Germany
3. Department of Mechanical Engineering, Polytechnic Institute of Lisbon, 1959-007 Lisbon, Portugal
4. CTS Uninova, 2829-516 Caparica, Portugal
5. Deutsche Bank, AG 1 Great Winchester Street, London EC2N 2DB, UK
6. Supply Chain Management Department, Borgwarner, 3000 University Drive, Auburn Hills, MI 48326, USA
7. Department of Informatic Engineering, UTAD-IST, Quinta de Prados, 5000-801 Vila Real, Portugal