References
[1]. Atay, F. M. (1998). Van der Pol's oscillator under delayed
feedback. Journal of Sound and Vibration, 218(2), 333-
339.
[2]. Calzolari, P. U., Franchi, E., & Soncini, G. (1992). An
analytical investigation on the propagation delay in ring
oscillators. Integration, 13(2), 129-152. https://doi.org/10.
1016/0167-9260(92)90002-G
[3]. Franklin, G. F., Powell, J. D., & Emami-Naeini, A. (1994).
Feedback control of dynamic systems (3rd ed.). MA:
Addison Wiley.
[4]. Harb, B. (2014). Effect of time delay on the pull-in range
of phase locked loops. Journal of Vibroengineering, 16(1),
369-377.
[5]. Hunt, D., Korniss, G., & Szymanski, B. K. (2011). The
impact of competing time delays in coupled stochastic
systems. Physics Letters A, 375(5), 880-885.
[6]. Kiss, G., & Lessard, J. P. (2017). Rapidly and slowly
oscillating periodic solutions of a delayed van der Pol
oscillator. Journal of Dynamics and Differential Equations,
29(4), 1233-1257. https://doi.org/10.1007/s10884-017-95
99-x
[7]. Peng, M., Zhang, Z., Qu, Z., & Bi, Q. (2019). Qualitative
analysis in a delayed Van del Pol oscillator. Physica A:
Statistical Mechanics and its Applications, 544, 1-22.
https://doi.org/10.1016/j.physa.2019.123482
[8]. Premraj, D., Suresh, K., & Thamilmaran, K. (2019). Effect
of processing delay on bifurcation delay in a network of
slow-fast oscillators. Chaos: An Interdisciplinary Journal of
Nonlinear Science, 29(12). https://doi.org/10.1063/1.512
3417
[9]. Xu, J., & Chung, K. W. (2003). Effects of time delayed
position feedback on a van der Pol–Duffing oscillator.
Physica D: Nonlinear Phenomena, 180(1-2), 17-39. https://
doi.org/10.1016/S0167-2789(03)00049-6
[10]. Yao, C., He, Z., & Zou, W. (2020). Oscillation behavior
driven by processing delay in diffusively coupled inactive
systems: Cluster synchronization and multistability. Chaos:
An Interdisciplinary Journal of Nonlinear Science, 30(12).
https://doi.org/10.1063/5.0025958
[11]. Zduniak, B., Bodnar, M., & Forys, U. (2014). A modified
van der Pol equation with delay in a description of the heart
action. International Journal of Applied Mathematics and
Computer Science, 24(4), 853-863.