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Grieco, A., Gilioli, R., Astolfi, A. et al. A new apparatus for the simultaneous quantitative evaluation of several biological signals relevant to work physiology. Med. & biol. Engng. 9, 705–710 (1971). https://doi.org/10.1007/BF02474652
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DOI: https://doi.org/10.1007/BF02474652