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 -