RT Article T1 Public service motivation: A test of the job attraction selection-attrition model JF International public management journal VO 13 IS 2 SP 155 OP 176 A1 Wright, Bradley E. A2 Christensen, Robert K. LA English YR 2010 UL https://krimdok.uni-tuebingen.de/Record/1912670739 DO 10.1080/10967491003752012