1. Tribochemistry Consulting, Salt Lake City, UT, USA
2. University of Economy, Biotribology Laboratory, Garbary, Bydgoszcz, Poland
3. Department of Mechanical and Manufacturing Engineering, Manipal Academy of Higher Education, Manipal, India
4. Faculty of Technology, Kujawy and Pomorze University, Torunska, Bydgoszcz, Poland
5. Faculty of Mathematics, Physics and Technical Sciences, Kazimierz Wielki University, Chodkiewicza, Bydgoszcz, Poland
6. Medical Rehabilitation Sciences, Department of Prosthetics and Orthotics, Taibah University, Madinah, Saudi Arabia