1. UTAD University, Coimbra and Portugal, --- Select a Country ---
2. INESC-TEC Technology and Science, Campus da FEUP, Rua Dr. Roberto Frias 378, 4200 - 465 Porto, Portugal, Knowledge Engineering and Decision-Support Research Center (GECAD) of the Institute of Engineering, Polytechnic Institute of Porto, Portugal, Department of Electrical Engineering, Institute of Engineering of Coimbra, Polytechnic Institute, Rua Pedro Nunes, 3031-601 Coimbra and Portugal, --- Select a Country ---
3. State University of Piauí, Piauí and Brazil, --- Select a Country ---
4. State University of Piauí, Piauí, Brazil, University Brazil, São Paulo and Brazil, --- Select a Country ---
5. INESC-TEC Technology and Science, Campus da FEUP, Rua Dr. Roberto Frias 378, 4200 - 465 Porto, Portugal, IEETA-UA and School of Science and Technology, University of Trás-os-Montes and Alto Douro, Vila Real and Portugal, --- Select a Country ---
6. IEETA-UA and School of Science and Technology, University of Trás-os-Montes and Alto Douro, Vila Real and Portugal, --- Select a Country ---