1. Ain, K., Kurniadi, D., Ulum, M.F., Choridah, L., Mukhayyar, U., Garnadi, A.D., Setyawan, N.H., Ariwanto, B.: Development of multi frequency electrical impedance tomography for rectangular geometry by finite volume methods. J. Teknol. 84(2), 9–15 (2022)
2. Bera, T.K.: Bioelectrical impedance methods for noninvasive health monitoring: a review. J. Med. Eng. 2014(1), 1–28 (2014)
3. Bera, T.K.: Applications of electrical impedance tomography (EIT): a short review. IOP Conf. Ser. Mater. Sci. Eng. 331(1), 1–8 (2018)
4. Grimnes, S., Martinsen, O.G.: Bioimpedance and Bioeletricity Basics, 3rd edn. Elsevier, United States of America (2014)
5. Hilbert, S.: FFT zero padding (2013). https://www.bitweenie.com/listings/fft-zero-padding/