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5.VAN DER POL B. A theory of the amplitude of free and forced triode vibrations[J]. Radio Review, 1920, 1: 701-710.
5.VAN DER POL B. A theory of the amplitude of free and forced triode vibrations[J]. Radio Review, 1920, 1: 701-710.
6.VAN DER POL B, VAN DER MARK J. Frequency demultiplication[J]. Nature, 1927, 120(3019): 363-364. DOI:10.1038/120363a0.
6.VAN DER POL B, VAN DER MARK J. Frequency demultiplication[J]. Nature, 1927, 120(3019): 363-364. DOI:10.1038/120363a0.
7.https://www.phys.uconn.edu/~rozman/Courses/P2200_13F/downloads/vanderpol/vanderpol-oscillator-draft.pdf
==署名==
==署名==