TY  - GEN
A1  - BERNHOLD, T.
A1  - KALING, N.
A1  - LELLEK, V.
T1  - Measurement of productivity of property services: an empiric analysis of the status quo, XXI. International RESER Conference, Hamburg, 07.09.-10.09.2011 2011
Y1  - 2011
UR  - https://www.hb.fh-muenster.de/opus4/frontdoor/index/index/docId/6139
ER  -