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- [21] METHOD FOR THE SPECTRUM ANALYSIS OF INFRALOW FREQUENCY PERIODIC SIGNALS MEASUREMENT TECHNIQUES USSR, 1982, 25 (05): : 380 - 383
- [22] A comparison of spectrum estimation techniques for periodic not stationary signals IMTC/2001: PROCEEDINGS OF THE 18TH IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-3: REDISCOVERING MEASUREMENT IN THE AGE OF INFORMATICS, 2001, : 1130 - 1134
- [24] On the discrete spectrum of periodic differential operators with a distant perturbation Doklady Mathematics, 2013, 87 : 42 - 44