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Berlin; Heidelberg [u.a.]: Springer, 2013
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München: C.H. Beck, 2015
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Hannover: Gottfried Wilhelm Leibniz Universität Hannover, 2017 ; Hannover: Technische Informationsbibliothek (TIB), 2017
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Journal of Medical Internet Research, 2017
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2022
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Berlin, Germany: German Socio-Economic Panel (SOEP), DIW Berlin, [2021]
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Berlin, Germany: DIW Berlin, German Socio-Economic Panel (SOEP), [2021]
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Frankfurt am Main: Deutsches Institut für Internationale Pädagogische Forschung, [2006]
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JMIR Publications Inc., 2017
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Springer Science and Business Media LLC, 2017
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Wiley, 2012
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Wiley, 2008
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American Association for the Advancement of Science (AAAS), 2018