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1by Farquhar, G. B.Subjects: “...Acoustic Detection and Detectors...”
Published 1970
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2by Welsh, James P, Ketchum, Jr , Robert D, Lohanick, Alan W, Farmer, L Dennis, Eppler, Duane T, Burge, Raymond E, Charles J RadlSubjects: “...REMOTE DETECTORS...”
Published 1986
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