Hellen P. Gross

发表

B. Helmig, Walter Wymer, Hellen P. Gross, 2015, VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations.

Walter Wymer, Hellen P. Gross, 2021, International Journal of Nonprofit and Voluntary Sector Marketing.

Hellen P. Gross, Nicole Schwarz, S. Cramer von Clausbruch, 2021 .

Hellen P. Gross, Maren Rottler, Franziska Wallmeier, 2020, Journal of Philanthropy and Marketing.