1. VTT Technical Research Centre of Finland, VTT Processes, P.O.Box 1608, FIN-02044 VTT, Espoo, Finland
2. Škoda JS s.r.o., Orlik 266, CZ-316 06 Plzeň, Czech Republic
3. NRG, Materials, Monitoring and Inspection, P.O.Box 25, NL-1755 ZG Petten, The Netherlands