TY  - JOUR
A1  - Liese, Andrea Margit
A1  - Beisheim, Marianne
T1  - Research design : measuring and explaning the effectiveness of PPPs
Y1  - 2014
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/34415
SN  - 978-1-137-35925-0
ER  -