@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}
}