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- [2] An open-source high-frequency lock-in amplifier REVIEW OF SCIENTIFIC INSTRUMENTS, 2019, 90 (09):
- [3] Generalized lock-in amplifier for precision measurement of high frequency signals REVIEW OF SCIENTIFIC INSTRUMENTS, 2013, 84 (11):
- [4] LOW-FREQUENCY COMPUTERIZED LOCK-IN AMPLIFIER REVIEW OF SCIENTIFIC INSTRUMENTS, 1982, 53 (07): : 1082 - 1085