1. FCT/UNL CTS/UNINOVA,Department of Electrical and Computing Engineering,Caparica,Portugal
2. Sustain.RD, ESTSetúbal, Instituto Politécnico Setúbal,CTS/UNINOVA,Department of Electrical Engineering,Setúbal,Portugal
3. Sustain.RD, ESTSetúbal, Instituto Politécnico Setúbal,INESC-ID Lisboa,Department of Electrical Engineering,Setúbal,Portugal