@inproceedings{BernholdSchlichtLellek2019,
  author    = {Bernhold, Torben and Schlicht, Christian and Lellek, Vanessa},
  title     = {Become an Outperformer! - Measurement of added value},
  series = {Research Paper for the 18th EuroFM Research Symposium},
  booktitle = {Research Paper for the 18th EuroFM Research Symposium},
  editor    = {Tucker, Matthew},
  publisher = {EuroFM},
  address   = {Schiphol-Rijk},
  isbn      = {978-94-90694-10-4},
  pages     = {44 -- 56},
  year      = {2019},
  language  = {en}
}
@misc{LELLEKBERNHOLD2015,
  author    = {LELLEK, V. and BERNHOLD, T.},
  title     = {Productivity Measurement of Service - Models and Web-based Computer Applications; 3rd International Conference on Management, Leadership and Governance - ICMLG 2015, 12-13 February 2015, Auckland, New Zealand.},
  year      = {2015},
  language  = {en}
}
@incollection{LELLEKKUeRSCHNER2014,
  author    = {LELLEK, V. and K{\"U}RSCHNER, M.},
  title     = {Produktivit{\"a}tsmessung von Immobilien-Services unter Einsatz einer CAFM Web-Applikation},
  series = {Facility Management Messe 2014 Tagungsband.},
  booktitle = {Facility Management Messe 2014 Tagungsband.},
  publisher = {VEW Verlag 2014},
  address   = {Berlin, Offenbach},
  pages     = {214 -- 224},
  year      = {2014},
  language  = {de}
}
@article{MEERMANLELLEKSERBIN2014,
  author    = {MEERMAN, A. and LELLEK, V. and SERBIN, D.},
  title     = {The Path to Excellence; integrating customer satisfaction in productivity measurement in Facility Management},
  series = {EuroFM Journal. International Journal of Facilities Management. Research Papers, Advancing knowledge in Facilities Management. Promoting Innovation in FM, March 2014},
  journal   = {EuroFM Journal. International Journal of Facilities Management. Research Papers, Advancing knowledge in Facilities Management. Promoting Innovation in FM, March 2014},
  pages     = {201 -- 211},
  year      = {2014},
  language  = {en}
}
@misc{KOERSLELLEKBERNHOLDetal.2014,
  author    = {KOERS, J. and LELLEK, V. and BERNHOLD, T. and YOUSSEF, L.},
  title     = {Visualization of services - Closing expectation gaps and increasing service quality; 24th Annual RESER Conference, September 11-13, 2014, Helsinki, Finland.},
  year      = {2014},
  language  = {en}
}
@incollection{BERNHOLDLELLEK2014,
  author    = {BERNHOLD, T. and LELLEK, V.},
  title     = {Produktivit{\"a}tsmessung von Immobiliendienstleistungen: Theorie - Konzepte - Praxis},
  series = {BERNHOLD, T.; MAY, M.; MEHLIS, J.; Handbuch Facility Management: Grundlagen, Arbeitsfelder, Wissensmanagement},
  booktitle = {BERNHOLD, T.; MAY, M.; MEHLIS, J.; Handbuch Facility Management: Grundlagen, Arbeitsfelder, Wissensmanagement},
  edition   = {42. Erg{\"a}nzungsliefer},
  publisher = {ecomed SICHERHEIT 2014},
  address   = {Heidelberg, M{\"u}nchen, Landsberg, Frechen, Hamburg},
  pages     = {1 -- 29 (2.2.1.1.1)},
  year      = {2014},
  language  = {de}
}
@incollection{KOERSLELLEKBERNHOLDetal.2014,
  author    = {KOERS, J. and LELLEK, V. and BERNHOLD, T. and YOUSSEF, L.},
  title     = {Visualization of services - Closing expectation gaps and increasing service quality.},
  series = {Thomas Baaken und Janusz Teczke (Hg.): Managing Disruption and Destabilisation},
  booktitle = {Thomas Baaken und Janusz Teczke (Hg.): Managing Disruption and Destabilisation},
  publisher = {International Management Foundation, Cracow University of Economics},
  address   = {M{\"u}nster, Krakau},
  pages     = {331 -- 340},
  year      = {2014},
  language  = {en}
}
@incollection{BECKERBERNHOLDBEVERUNGENetal.2013,
  author    = {BECKER, J. and BERNHOLD, T. and BEVERUNGEN, D. and KALING, N. and KNACKSTEDT, R. and LELLEK, V. and RAUER, H.},
  title     = {Softwaregest{\"u}tzte Konstruktion von Produktivit{\"a}tsmodellen im Facility Management},
  series = {Thomas, Oliver; N{\"u}ttgens, Markus (Hg.): Dienstleistungsmodellierung 2012. Product-Service Systems und Produktivit{\"a}t.},
  booktitle = {Thomas, Oliver; N{\"u}ttgens, Markus (Hg.): Dienstleistungsmodellierung 2012. Product-Service Systems und Produktivit{\"a}t.},
  publisher = {Springer},
  address   = {Wiesbaden},
  pages     = {208 -- 226},
  year      = {2013},
  language  = {de}
}
@misc{LELLEKAVERBECK2013,
  author    = {LELLEK, V. and AVERBECK, A.},
  title     = {Creation of value for guest - measuringof Facility Services in hotels including the customer value. In: Proceedings of the 15th Facility \& Real Estate Management Congress, 6. - 8. February 2013, Hotel and leisure facilities, Kufstein.},
  year      = {2013},
  language  = {en}
}
@misc{BERNHOLDLELLEKKUeRSCHNERetal.2013,
  author    = {BERNHOLD, T. and LELLEK, V. and K{\"U}RSCHNER, M. and AVERBECK, A.-K.},
  title     = {Productivity Measurement of Facility Services - A web-based CAFM Application; XXIII International RESER Conference; September 19th-21st 2013, Aix en Provence},
  year      = {2013},
  language  = {en}
}