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1.
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European Commission. Directorate-General for Employment, Industrial Relations, and Social Affairs
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2.
図書 |
European Commission. Directorate-General for Employment, Industrial Relations, and Social Affairs
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3.
図書 |
European Commission. Directorate-General for Employment, Industrial Relations, and Social Affairs
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4.
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study carried out at the request of the European Commission Directorate-General V (Employment, Industrial Relations and Social Affairs) and Directorate-General XIII (Telecommunications, Information Market and Exploitation of Research)
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5.
図書 |
European Commission. Directorate-General for Employment, Industrial Relations, and Social Affairs
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6.
図書 |
European Commission, Directorate-General for Employment, Industrial Relations and Social Affairs
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