1. John Deere, One John Deere Place, Moline, IL 61265, USA
2. INEGI, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
3. Faculty of Mechanical Engineering, Department of Mechanics, Material Science and Engineering, Wrocław University of Science and Technology, Smoluchowskiego 25, 50-370 Wrocław, Poland
4. Department of Industrial and Mechanical Design, Norwegian University of Science and Technology, Norway
5. Department of Construction and Manufacturing Engineering, Univ. of Oviedo, 33203 Gijón, Spain
6. Department of Mechanical Engineering, University of Waterloo, 200 Univ. Avenue West, Waterloo, ON, 2L 3G1, Canada