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- [2] SIMPLE TRACE DOUBLER FOR LOW-FREQUENCY SIGNALS ELECTRONIC ENGINEERING, 1980, 52 (635): : 19 - 19
- [4] SIMPLE FORMULA FOR ESTIMATING THE EFFICIENCY OF A VARACTOR FREQUENCY DOUBLER. Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika), 1982, 36-37 (04): : 89 - 92