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[S.l.]: SSRN, [2017]
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Paris: Organisation for Economic Co-operation and Development (OECD), International Transport Forum, 2015
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Heilbronn: Hochschule Heilbronn, [2020?]
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University of Gothenburg, 2012
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Elsevier BV, 2016
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Springer Science and Business Media LLC, 2018
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OECD, 2018
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OECD, 2017
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Elsevier BV, 2001
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Elsevier BV, 1983
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Elsevier BV, 2007
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Informa UK Limited, 2007
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Ovid Technologies (Wolters Kluwer Health), 1990
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Springer Science and Business Media LLC, 1990
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Informa UK Limited, 2021
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Wiley, 2020
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Informa UK Limited, 2020
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Informa UK Limited, 2019
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Wiley, 2019