1. a Furukawa Electric Institute of Technology, H-1158, Budapest, Késmárk u. 24-28, Hungary
2. b Research Institute for Materials Science - ATKI, H-1525 Budapest, Konkoly-Thege út 29-33, Hungary
3. c Research Institute for Materials Science - ATKI, H-1525 Budapest, Konkoly-Thege út 29-33, Hungary