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Geneve: International Organization for Standardization, 1982
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Geneve: International Organization for Standardization, 1981
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Geneve: International Organization for Standardization, 2005
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Geneve: International Organization for Standardization, 1982
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Geneve: International Organization for Standardization, 1978
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Geneve: International Organization for Standardization, 1976
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Geneve: International Organization for Standardization, 2000
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Geneve: International Organization for Standardization, 1995
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1955