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- [1] DIRECT-READING INSTRUMENT FOR THE MEASUREMENT OF RMS PULSE JITTER PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1955, 43 (03): : 350 - 350
- [3] INSTRUMENT LAMBDA WITH DIRECT READINGS OF THERMAL-CONDUCTIVITY MEASUREMENT TECHNIQUES-USSR, 1971, 14 (07): : 1031 - &
- [6] Quick and easy to get a measurement result with direct-reading gas measuring devices? Gefahrstoffe Reinhaltung der Luft, 2020, 80 (10):
- [10] Direct-reading instruments for fibre measurement GEFAHRSTOFFE REINHALTUNG DER LUFT, 1996, 56 (02): : 69 - 71