1. KU Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
2. Faculty Research Centre in Fluid and Complex Systems, Coventry University, Coventry, U.K.
3. University of South-Eastern Norway, Porsgrunn, Norway
4. Institute for Research in Technology, ICAI, Comillas Pontifical University, Madrid, Spain
5. Department of Electrical Engineering (ESAT), KU Leuven, Diepenbeek, Belgium