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Bern; Altdorf: Ecoplan AG, 23.02.2023
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[S.l.]: SSRN, [2019]
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Hamburg: Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2017
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Munich, Germany: CESifo, August 2024
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Fribourg: University of Fribourg, Switzerland, Faculty of Management, Economics and Social Sciences, [2024]
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Munich: CESifo GmbH, 2024
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Munich: Center for Economic Studies and ifo Institute (CESifo), 2019
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Munich, Germany: CESifo, Center for Economic Studies & Ifo Institute, [2019]
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[S.l.]: SSRN, [2020]
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Fribourg: University of Fribourg, Switzerland, Faculty of Management, Economics and Social Sciences, [2023]
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Munich, Germany: CESifo, March 2023
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[S.l.]: SSRN, [2023]
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Munich: Center for Economic Studies and ifo Institute (CESifo), 2023
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[S.l.]: SSRN, [2022]
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Bonn: ECONtribute, February 2021
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Bonn and Cologne: University of Bonn and University of Cologne, Reinhard Selten Institute (RSI), 2021
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German Federal Highway Research Institute (BASt): Electronic BASt Archive (ELBA), 2011-02-15
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Hamburg: Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2017
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Elsevier BV, 2019
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Elsevier BV, 2023