Oostlander, JeannetteGüntert, Stefanvan Schie, SusanWehner, Theo2015-10-122015-10-1220140899-76401552-739510.1177/0899764013485158http://hdl.handle.net/11654/10325en330 - WirtschaftLeadership and volunteer motivation: A study using self-determination theory01A - Beitrag in wissenschaftlicher Zeitschrift869-889