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Köln: Verlag TÜV Rheinland, 1986
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Geneve: International Organization for Standardization, 2021
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Geneve: International Organization for Standardization, 2021
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Geneve: International Organization for Standardization, 2018
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Geneve: International Organization for Standardization, 2010
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Geneve: International Organization for Standardization, 2013