1. University of Strasbourg, University of Lorraine, CNRS, BETA, Strasbourg, France
2. Industrial Engineering Center, Toulouse University, IMT Mines Albi, Albi, France
3. ICUBE, CNRS UMR 7357, Strasbourg University, Strasbourg, France
4. UNU-MERIT, Maastricht University, Maastricht, The Netherlands