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Rolf Wortmann

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Jahrbuch für Management in Nonprofit-Organisationen 2019 Nonprofit Management Yearbook 2019
Jahrbuch für Management in Nonprofit-Organisationen 2017 Nonprofit Management Yearbook 2017
Jahrbuch für Management in Nonprofit-Organisationen 2014. Nonprofit Management Yearbook 2014 Nonprofit Management Yearbook 2014
Jahrbuch für Management in Nonprofit-Organisationen 2013 Nonprofit Management Yearbook 2013