TY - CHAP A1 - BERNHOLD, T. A1 - KALING, N. A1 - LELLEK, V. T1 - Productivity Measurement Model - A Holistic Approach For Services T2 - JUNGHANS, A.; JENSEN, P. A (Editors) Proceedings of the 11th EuroFM Research Symposium, 24.-25. May 2012 in Copenhagen, Denmark Y1 - 2012 SP - 20 EP - 30 PB - Polyeknisk Forlag 2012 CY - Lyngby : ER - TY - JOUR A1 - BECKER, J. A1 - BERNHOLD, T. A1 - BEVERUNGEN, D. A1 - KALING, N. A1 - KNACKSTEDT, R. A1 - LELLEK, V. A1 - RAUER, H. T1 - Construction of Productivity Models - A Tool-Supported Approach in the Area of Facility Management JF - Enterprise Modelling and Information Systems Architectures Y1 - 2012 IS - Vol. 7, No. 1 SP - 28 EP - 43 ER - TY - GEN A1 - BERNHOLD, T. A1 - SCHLICHT, C. A1 - LELLEK, V. T1 - Added Value im CREM/FM - Studienergebnisse - Past - Present - Future, Münster, November 2018 Y1 - 2018 ER -