1. Leuphana University of Lueneburg,Institute for Production Technology and Systems,Lueneburg,Germany,D-21335
2. CEFET-MG,Department of Electroelectronics,Leopoldina,Brazil
3. CEFET-MG,Master Degree in Automation and System,Leopoldina,Brasil
4. CEFET-MG,Department of Electroelectronics
5. UNIFAMINAS,Muriaé,Brazil