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              Gerbert P., Lorenz M., Rüßmann M., Waldner M., Justus J., Engel P., Harnisch M. (2015) Indus- try 4.0: The Future of Productivity and Growth in Manufacturing Industries / BCG. 09.04.2015. https://www.bcgperspectives.com/content/articles/ engineered_products_project_business_industry_40_ future_productivity_growth_manufacturing_industries.
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              Rüssmann, Michael/Lorenz, Markus/Gerbert, Philipp/Waldner, Manuela/Justus, Jan/Engel, Pascal/Harnisch, Michael (2015): Industry 4.0. The Future of Productivity and Growth in Manufacturing Industries, Boston: The Boston Consulting Group.
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              Rüßmann, Michael/Lorenz, Markus/Gerbert, Philipp/Waldner, Manuela/Justus, Jan/Engel, Pas- cal/Harnisch, Michael (2015): Industry 4.0. The Future of Productivity and Growth in Manufacturing Industries, https://www.zvw.de/media.media.72e472fb-1698-4a15-8858- 344351c8902f.original.pdf (Zugriff: 23. März 2018).
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              Rüßmann, Michael/Lorenz, Markus/Gerbert, Philipp/Waldner, Manuela/Justus, Jan/Engel, Pascal/Harnisch, Michael (2015): Industry 4.0. The Future of Productivity and Growth in Manufacturing Industries, http://www.zvw.de/media.media.72e472fb-1698-4a15-8858- 344351c8902f.original.pdf (Zugriff: 15. März 2017).
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              Rüßmann, M. L., Markus/Gerbert, P. W., Manuela/Justus, J. E., Pascal/Harnisch, M., J., J., P., E., M, H. (2015). Indus- try 4.0. Boston: The Boston Consulting Group. The Future of Productivity and Growth in Manufacturing Industries / BCG.
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