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- [2] CONTINUOUSLY VARIABLE DELAY LINE PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, 1965, 53 (02): : 170 - +
- [3] CONTINUOUSLY VARIABLE DELAY LINE PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1953, 41 (03): : 411 - 411
- [4] CONTINUOUSLY VARIABLE DELAY-LINE SYSTEM IEEE TRANSACTIONS ON SONICS AND ULTRASONICS, 1977, 24 (02): : 128 - 128