TY - CHAP A1 - BERNHOLD, T. A1 - KALING, N. A1 - LELLEK, M. T1 - Measurement of productivity of property services - an empiric analysis of the status quo T2 - GANZ, W.; KIRCHERER, F.; SCHLETZ, A. (Hrsg.); Productivity of Services NextGen - Beyond Output/Input Y1 - 2011 UR - https://www.hb.fh-muenster.de/opus4/frontdoor/index/index/docId/4005 SN - 978-3-8396-0297-3 SP - 190 EP - 191 PB - Fraunhofer Verlag CY - Stuttgart ER -