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- [4] Lasers - a universal measuring instrument for wheel and rail Eisenbahningenieur, 2000, 51 (10): : 61 - 65
- [8] INSTRUMENT FOR MEASURING GAPS USING CIRCULAR WEDGE-TYPE MEASURING ELEMENTS MEASUREMENT TECHNIQUES USSR, 1990, 33 (06): : 558 - 560
- [10] NEW INSTRUMENT FOR MEASURING SURFACE PRESSURE REVIEW OF SCIENTIFIC INSTRUMENTS, 1979, 50 (09): : 1098 - 1100