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Additional information
Translated from Izmeritel'naya Tekhnika, No. 12, pp. 68–69, December, 1975.
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Brazhnikov, N.I. Pulse-echo ultrasonic thickness gauge with a reduced dead zone. Meas Tech 18, 1834–1835 (1975). https://doi.org/10.1007/BF00832772
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DOI: https://doi.org/10.1007/BF00832772