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Schack, B., Grieszbach, G., Arnold, M. et al. Dynamic cross-spectral analysis of biological signals by means of bivariate ARMA processes with time-dependent coefficients. Med. Biol. Eng. Comput. 33, 605–610 (1995). https://doi.org/10.1007/BF02522521
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DOI: https://doi.org/10.1007/BF02522521