1. NOVA School of Science and Technology (FCT NOVA),Caparica,Portugal
2. University of Bath,Inst. Advanced Automotive Propulsion Systems (IAAPS),Bath,United Kingdom
3. Institute of Materials Science of Barcelona (ICMAB-CSIC),Barcelona,Spain
4. University of Extremadura,Department of Electrical Engineering,Badajoz,Spain
5. FCT NOVA,Centre of Technology and Systems (CTS-UNINOVA),Caparica,Portugal