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Publisher Correction: Fractional Calculus and Applied Analysis (2023) 26:1566–1593 https://doi.org/10.1007/s13540-023-00168-x
The original online version of this article was revised: Figure 6 was replaced with Figure 7, making Figure 7 serve for both 6 and 7. Figure 6 has now been updated.
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Mahata, S., Herencsar, N. & Maione, G. Publisher Correction: Optimal approximation of analog PID controllers of complex fractional-order. Fract Calc Appl Anal 26, 2439 (2023). https://doi.org/10.1007/s13540-023-00200-0
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DOI: https://doi.org/10.1007/s13540-023-00200-0