@incollection{RIEMENSCHNEIDERNITZSCHEBERNHOLD2005,
  author    = {RIEMENSCHNEIDER, F. and NITZSCHE, F. and BERNHOLD, T.},
  title     = {) FM-gerechte PPP-Ausschreibungen unter Ber{\"u}cksichtigung eines ganzheitlichen Betriebskonzepts},
  series = {MEYER-HOFMANN, B., RIEMENSCHNEIDER, F. \& WEIHRAUCH, O. (Hrsg.) Public Private Partnership: Gestaltung von Leistungsbeschreibung, Finanzierung, Ausschreibung und Vertr{\"a}gen in der Praxis},
  booktitle = {MEYER-HOFMANN, B., RIEMENSCHNEIDER, F. \& WEIHRAUCH, O. (Hrsg.) Public Private Partnership: Gestaltung von Leistungsbeschreibung, Finanzierung, Ausschreibung und Vertr{\"a}gen in der Praxis},
  publisher = {Carl Heymanns Verlag},
  address   = {K{\"o}ln; Berlin; M{\"u}nchen},
  pages     = {35 -- 110},
  year      = {2005},
  language  = {de}
}
@misc{RIEMENSCHNEIDERNitzscheBERNHOLD2008,
  author    = {RIEMENSCHNEIDER, F. and Nitzsche, F. and BERNHOLD, T.},
  title     = {Betreiberkonzept, Pr{\"a}sentation f{\"u}r den Bau- und Liegenschaftsbetrieb Nordrhein-Westfalen, D{\"u}sseldorf},
  year      = {2008},
  language  = {de}
}
@book{RIEMENSCHNEIDERBERNHOLDNITZSCHEetal.2008,
  author    = {RIEMENSCHNEIDER, F. and BERNHOLD, T. and NITZSCHE, F. and ALTEK{\"O}STER, A.},
  title     = {Leistungsverb{\"u}nde des Handwerks im Rahmen von FM-gerechten Planung und Bauen unter Ber{\"u}cksichtigung der entsprechenden Schnittstellen und Visualisierung des Prozesses; Forschungsbericht},
  publisher = {Institut f{\"u}r Logistik und Facility Management},
  address   = {M{\"u}nster},
  year      = {2008},
  language  = {de}
}
@misc{RIEMENSCHNEIDERBERNHOLDNITZSCHE2007,
  author    = {RIEMENSCHNEIDER, F. and BERNHOLD, T. and NITZSCHE, F.},
  title     = {Wissenschaftlicher Kommentar in Bezug auf Wirtschaftlichkeitsuntersuchungen in {\"O}PP-Projekten vom 26.-27.04.2007. Speyerer {\"O}PP-Tage},
  year      = {2007},
  language  = {de}
}
@misc{RIEMENSCHNEIDERBERNHOLD2006,
  author    = {RIEMENSCHNEIDER, F. and BERNHOLD, T.},
  title     = {Leistungsverb{\"u}nde des Handwerks im Rahmen von FM gerechten Planen und Bauen unter Ber{\"u}cksichtigung der entsprechen-den Schnittstellen und Visualisierung des Prozesses; M{\"u}nster, Ahlen, Fachhochschule M{\"u}nster (www.isfm.de)},
  year      = {2006},
  language  = {de}
}
@misc{RIEMENSCHNEIDERBERNHOLD2009,
  author    = {RIEMENSCHNEIDER, F. and BERNHOLD, T.},
  title     = {Die unternehmerische F{\"u}hrungsaufgabe: Strategisches Facility Management, Langfristige Wertsch{\"o}pfung braucht Strategie, Pr{\"a}sentation im Rahmen eines Management-Circle Intensivseminars, November},
  year      = {2009},
  language  = {de}
}
@misc{RIEMENSCHNEIDERBERNHOLD2009,
  author    = {RIEMENSCHNEIDER, F. and BERNHOLD, T.},
  title     = {Die unternehmerische F{\"u}hrungsaufgabe: Strategisches Facility Management, Langfristige Wertsch{\"o}pfung braucht Strategie, Pr{\"a}sentation im Rahmen eines Management-Circle Intensivseminars, M{\"a}rz},
  year      = {2009},
  language  = {de}
}
@incollection{PLATNERKOERSBERNHOLD2015,
  author    = {PLATNER, V. and KOERS, J. and BERNHOLD, T.},
  title     = {FM im Gesundheitswesen - Status quo und weitere Entwicklung},
  series = {BERNHOLD, T.; MAY, M.; MEHLIS, J.; Handbuch Facility Management: Grundlagen, Arbeitsfelder, Wissensmanagement: 45. Erg{\"a}nzungslieferung},
  booktitle = {BERNHOLD, T.; MAY, M.; MEHLIS, J.; Handbuch Facility Management: Grundlagen, Arbeitsfelder, Wissensmanagement: 45. Erg{\"a}nzungslieferung},
  publisher = {ecomed SICHERHEIT},
  address   = {Heidelberg, M{\"u}nchen, Landsberg, Frechen, Hamburg},
  pages     = {1 -- 32},
  year      = {2015},
  language  = {de}
}
@book{MAYBERNHOLDRIEMENSCHNEIDER2009,
  author    = {MAY, M. and BERNHOLD, T. and RIEMENSCHNEIDER, F.},
  title     = {Abschlussbericht des Forschungsprojektes FM-ASSIST- Rechnergest{\"u}tztes Assistenzsystem f{\"u}r komplexe Entscheidungsprozesse im Facility Management},
  address   = {Berlin/Ahlen/M{\"u}nster},
  year      = {2009},
  language  = {de}
}
@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}
}
@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{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{KOERSBERNHOLDJUNKER2017,
  author    = {KOERS, J. and BERNHOLD, T. and JUNKER, C.},
  title     = {Umsetzung des Referenzmodells am Beispiel der Integralen Planung},
  series = {BECKER, J.; BERNHOLD, T.; KNACKSTEDT, R.; MATZNER, M.; Planung koordinierter Wertsch{\"o}pfungspartnerschaften},
  booktitle = {BECKER, J.; BERNHOLD, T.; KNACKSTEDT, R.; MATZNER, M.; Planung koordinierter Wertsch{\"o}pfungspartnerschaften},
  edition   = {1. Auflage},
  publisher = {Berlin : Springer Berlin - Springer Gabler},
  address   = {Berlin},
  isbn      = {978-3-662-55361-9},
  pages     = {293 -- 318},
  year      = {2017},
  language  = {de}
}
@incollection{KOERSBERNHOLDGUeNTHER2017,
  author    = {KOERS, J. and BERNHOLD, T. and G{\"U}NTHER, N.},
  title     = {Referenzmodellierung Integraler Planung},
  series = {BECKER, J.; BERNHOLD, T.; KNACKSTEDT, R.; MATZNER, M.; Planung koordinierter Wertsch{\"o}pfungspartnerschaften},
  booktitle = {BECKER, J.; BERNHOLD, T.; KNACKSTEDT, R.; MATZNER, M.; Planung koordinierter Wertsch{\"o}pfungspartnerschaften},
  edition   = {1. Auflage},
  publisher = {Berlin : Springer Berlin - Springer Gabler},
  address   = {Berlin},
  isbn      = {978-3-662-55361-9},
  pages     = {283 -- 292},
  year      = {2017},
  language  = {de}
}
@article{KANNINGVOGLERBERNHOLDetal.2008,
  author    = {KANNING, U. P. and VOGLER, S. and BERNHOLD, T. and GELLENBECK, K.},
  title     = {Determinants of the implementation of facility management in German communes},
  series = {Facilities},
  volume    = {26},
  journal   = {Facilities},
  number    = {09/10},
  pages     = {418 -- 425},
  year      = {2008},
  language  = {en}
}
@book{GEISSLERGROssKEILERetal.2010,
  author    = {GEISSLER, S. and GROß, M. and KEILER, S. and NEUMANN, G. and OELINGER, A. and BERNHOLD, T. and SCHUSTER, B. and DAMMER, K.},
  title     = {Lebenszykluskosten Prognosemodell - Immobilien-Datenbank Analysen zur Ableitung lebenszyklusorientierter Investitionsentscheidungen. Bundesministerium f{\"u}r Verkehr, Innovation und Technologie},
  address   = {Wien},
  year      = {2010},
  language  = {de}
}
@book{BERNHOLDSTRUNKBOeLTERetal.2009,
  author    = {BERNHOLD, T. and STRUNK, A. and B{\"O}LTER, G. and B{\"U}TTNER, B. and HERMANN, T. and MAY, M. and RIEMENSCHNEIDER, F.},
  title     = {Einf{\"u}hrung von Facility Management: Vorgehen bei der FM-Einf{\"u}hrung in Unternehmen und {\"o}ffentlichen Verwaltungen, GEFMA, Entwurf der Richtlinie 110.},
  year      = {2009},
  language  = {de}
}
@misc{BERNHOLDSCHLICHTLELLEK2018,
  author    = {BERNHOLD, T. and SCHLICHT, C. and LELLEK, V.},
  title     = {Added Value im CREM/FM - Studienergebnisse - Past - Present - Future, M{\"u}nster, November 2018},
  year      = {2018},
  language  = {de}
}
@incollection{BERNHOLDROSENKRANZ2010,
  author    = {BERNHOLD, T. and ROSENKRANZ, C.},
  title     = {Messung, Steuerung \& Koordination von Facility Management-Dienstleistungen im Immobilienlebenszyklus},
  series = {F{\"A}HNRICH, K.-P. \& FRANCZYK, B. (Hrsg.) INFORMATIK 2010 - Service Science - Neue Perspektiven f{\"u}r die Informatik, Band 1.},
  booktitle = {F{\"A}HNRICH, K.-P. \& FRANCZYK, B. (Hrsg.) INFORMATIK 2010 - Service Science - Neue Perspektiven f{\"u}r die Informatik, Band 1.},
  publisher = {GI-Edition},
  address   = {Leipzig},
  pages     = {647 -- 652},
  year      = {2010},
  language  = {de}
}
@misc{BERNHOLDROSENKRANZ2009,
  author    = {BERNHOLD, T. and ROSENKRANZ, C.},
  title     = {Management der Integration von Dienstleistungen und Produktion im Baugewerbe (Mind-Bau), Pr{\"a}sentation der Forschungsergebnisse im Rahmen der Aachener Dienstleistungstage, Aachen},
  year      = {2009},
  language  = {de}
}
@article{BERNHOLDRIEMENSCHNEIDERGELLENBECKetal.2006,
  author    = {BERNHOLD, T. and RIEMENSCHNEIDER, F. and GELLENBECK, K. and NITZSCHE, F. and VOGLER, S. and KANNING, U. P. and SCHLOCKERMANN, B.},
  title     = {Fehlendes Know-how und Akzeptanz-Probleme - Beim kommunalen Geb{\"a}udemanagement und bei Public Private Partnerships gibt es noch viel zu tun},
  series = {Facility Manager},
  journal   = {Facility Manager},
  number    = {11},
  pages     = {40 -- 43},
  year      = {2006},
  language  = {de}
}
@article{BERNHOLDRIEMENSCHNEIDERGELLENBECK2006,
  author    = {BERNHOLD, T. and RIEMENSCHNEIDER, F. and GELLENBECK, K.},
  title     = {Facility Management - Aufbruch in eine neue Zeit},
  series = {Mensch, Architektur\& Design},
  journal   = {Mensch, Architektur\& Design},
  pages     = {48 -- 49},
  year      = {2006},
  language  = {mul}
}
@misc{BERNHOLDRIEMENSCHNEIDER2012,
  author    = {BERNHOLD, T. and RIEMENSCHNEIDER, F.},
  title     = {{\"O}konomische Nachhaltigkeit versus Zertifizierung - Gibt es einen Finanzierungseffekt?; Immobilienfinanzierung 2012, Rotanda Business-Club K{\"o}ln, 24.04.2012},
  year      = {2012},
  language  = {de}
}
@incollection{BERNHOLDNITZSCHEROSENKRANZ2007,
  author    = {BERNHOLD, T. and NITZSCHE, F. and ROSENKRANZ, C.},
  title     = {Ein Ordnungsrahmen f{\"u}r lebenszyklusorientierte Planung im Facility Management},
  series = {BICHLER, M., HESS, T., KRCMAR, H., LECHNER, U., MATTHES, F., PICOT, A., SPEITKAMP, B. \& WOLF, P. (Hrsg.) Multikonferenz Wirtschaftsinformatik},
  booktitle = {BICHLER, M., HESS, T., KRCMAR, H., LECHNER, U., MATTHES, F., PICOT, A., SPEITKAMP, B. \& WOLF, P. (Hrsg.) Multikonferenz Wirtschaftsinformatik},
  publisher = {Gito-Verlag},
  address   = {Berlin},
  pages     = {1625 -- 1636},
  year      = {2007},
  language  = {de}
}
@misc{BERNHOLDNITZSCHE2007,
  author    = {BERNHOLD, T. and NITZSCHE, F.},
  title     = {Betreiberkonzepte im Facility Management, November, Gelsenkirchen},
  year      = {2007},
  language  = {de}
}
@misc{BERNHOLDNitzsche2008,
  author    = {BERNHOLD, T. and Nitzsche, F.},
  title     = {Betreiberkonzepte im Facility Management, Seminar f{\"u}r den Bau- und Liegenschaftsbetrieb NRW, August, D{\"u}sseldorf},
  year      = {2008},
  language  = {de}
}
@article{BERNHOLDMOHRNITZSCHEetal.2005,
  author    = {BERNHOLD, T. and MOHR, R. and NITZSCHE, F. and RIEMENSCHNEIDER, F.},
  title     = {Ganzheitliche Ergebnisorientierung bei Ausschreibungen f{\"u}r Erfolg nutzen},
  series = {Allgemeine Bauzeitung},
  journal   = {Allgemeine Bauzeitung},
  number    = {05},
  year      = {2005},
  language  = {de}
}
@book{BERNHOLDMAY2010,
  author    = {BERNHOLD, T. and MAY, M.},
  title     = {Prozessunterst{\"u}tzung im Facility Management - Grundlagen und Hilfsmittel f{\"u}r die Vereinheitlichung von Vorgehensweisen und Methoden. Initiative "Nachhaltiges Bauen - {\"O}ffentliche Hand"},
  address   = {Berlin},
  year      = {2010},
  language  = {de}
}
@article{BERNHOLDMAY2009,
  author    = {BERNHOLD, T. and MAY, M.},
  title     = {FM-Assist: Tastendruck statt Berater?},
  series = {Immobilien Zeitung},
  journal   = {Immobilien Zeitung},
  number    = {37},
  pages     = {14},
  year      = {2009},
  language  = {mul}
}
@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}
}
@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}
}
@misc{BERNHOLDLELLEKKOERSetal.2014,
  author    = {BERNHOLD, T. and LELLEK, V. and KOERS, J. and YOUSSEF, L.},
  title     = {International RESER Conference: Visualization of services - Closing expectations gaps and increasing service quality, XXIV. RESER Conference, 11.-13. September 2014, Helsinki, Finnland},
  pages     = {S. 900 -- 911},
  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; 42. Erg{\"a}nzungslieferung},
  booktitle = {BERNHOLD, T.; MAY, M.; MEHLIS, J.; Handbuch Facility Management: Grundlagen, Arbeitsfelder, Wissensmanagement; 42. Erg{\"a}nzungslieferung},
  publisher = {ecomed SICHERHEIT},
  address   = {Heidelberg, M{\"u}nchen, Landsberg, Frechen, Hamburg},
  pages     = {1 -- 29 (2.2.1.1.1)},
  year      = {2014},
  language  = {de}
}
@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}
}
@misc{BERNHOLDLATTUCHRIEMENSCHNEIDER2014,
  author    = {BERNHOLD, T. and LATTUCH, F. and RIEMENSCHNEIDER, F.},
  title     = {Success dimensions for major real estate projects: the case of stadium development, SCEE`2014 Conference, Riga Technical University 55th International Scientific Conference, 14-17 October 2014},
  year      = {2014},
  language  = {en}
}
@article{BERNHOLDLATTUCHRIEMENSCHNEIDER2014,
  author    = {BERNHOLD, T. and LATTUCH, F. and RIEMENSCHNEIDER, F.},
  title     = {Success Dimensions for Major Real Estate Projects: The Case of Stadium Development},
  series = {Baltic Journal of Real Estate Economics and Construction Management},
  journal   = {Baltic Journal of Real Estate Economics and Construction Management},
  number    = {2},
  pages     = {23 -- 29},
  year      = {2014},
  language  = {en}
}
@incollection{BERNHOLDKOERSPLATNER2015,
  author    = {BERNHOLD, T. and KOERS, J. and PLATNER, V.},
  title     = {Integrale Dokumentation - Aktuelle Ergebnisse aus der empirischen Forschung},
  series = {BERNHOLD, T.; MAY, M.; MEHLIS, J.; Handbuch Facility Management: Grundlagen, Arbeitsfelder, Wissensmanagement: 47. Erg{\"a}nzungslieferung},
  booktitle = {BERNHOLD, T.; MAY, M.; MEHLIS, J.; Handbuch Facility Management: Grundlagen, Arbeitsfelder, Wissensmanagement: 47. Erg{\"a}nzungslieferung},
  publisher = {ecomed SICHERHEIT},
  address   = {Heidelberg, M{\"u}nchen, Landsberg, Frechen, Hamburg},
  pages     = {1 -- 32},
  year      = {2015},
  language  = {de}
}
@misc{BERNHOLDKOERS2015,
  author    = {BERNHOLD, T. and KOERS, J.},
  title     = {Visualisierungspotenziale von Dienstleistungen im Facility Management - Entwicklung eines Modells f{\"u}r die Erfahrbarkeit von immateriellen Dienstleistungen, Facility Management 2015, Messe Frankfurt am Main, 24.-26.03.2015},
  year      = {2015},
  language  = {de}
}
@incollection{BERNHOLDKNACKSTEDT2011,
  author    = {BERNHOLD, T. and KNACKSTEDT, R.},
  title     = {Informationslogistik und Kooperationsprozesse im Rahmen der FM-gerechten Planung},
  series = {Facility Management Messe 2011 Tagungsband},
  booktitle = {Facility Management Messe 2011 Tagungsband},
  publisher = {VDE Verlag},
  address   = {Berlin, Offenbach},
  pages     = {525 -- 534},
  year      = {2011},
  language  = {de}
}
@incollection{BERNHOLDKALINGLELLEK2012,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, V.},
  title     = {Productivity Measurement Model - A Holistic Approach For Services},
  series = {Proceedings of the 11th EuroFM Research Symposium, 24.-25. May 2012 in Copenhagen, Denmark, IN: JUNGHANS, A.; JENSEN, P. A. (Editors)},
  booktitle = {Proceedings of the 11th EuroFM Research Symposium, 24.-25. May 2012 in Copenhagen, Denmark, IN: JUNGHANS, A.; JENSEN, P. A. (Editors)},
  publisher = {Polyeknisk Forlag},
  address   = {Lyngby},
  pages     = {20 -- 30},
  year      = {2012},
  language  = {en}
}
@incollection{BERNHOLDKALINGLELLEK2012,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, V.},
  title     = {Productivity Measurement Model - A Holistic Approach For Services},
  series = {JUNGHANS, A.; JENSEN, P. A (Editors) Proceedings of the 11th EuroFM Research Symposium, 24.-25. May 2012 in Copenhagen, Denmark},
  booktitle = {JUNGHANS, A.; JENSEN, P. A (Editors) Proceedings of the 11th EuroFM Research Symposium, 24.-25. May 2012 in Copenhagen, Denmark},
  publisher = {Polyeknisk Forlag 2012},
  address   = {Lyngby :},
  pages     = {20 -- 30},
  year      = {2012},
  language  = {en}
}
@incollection{BERNHOLDKALINGLELLEK2011,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, V.},
  title     = {Produktivit{\"a}tsmessung von Dienstleistungen},
  series = {BERNHOLD, T.; GELLENBECK, K.; RIEMENSCHNEIDER, F., M{\"u}nsteraner Schriften zum Facility Management},
  booktitle = {BERNHOLD, T.; GELLENBECK, K.; RIEMENSCHNEIDER, F., M{\"u}nsteraner Schriften zum Facility Management},
  publisher = {INFA-ISFM e.V.},
  address   = {M{\"u}nster, Ahlen},
  pages     = {108 -- 122},
  year      = {2011},
  language  = {de}
}
@misc{BERNHOLDKALINGLELLEK2011,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, V.},
  title     = {Measurement of productivity of property services: an empiric analysis of the status quo, XXI. International RESER Conference, Hamburg, 07.09.-10.09.2011 2011},
  year      = {2011},
  language  = {en}
}
@incollection{BERNHOLDKALINGLELLEK2012,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, V.},
  title     = {Produktivit{\"a}tsmessung von Immobilien-Services - empirische Analyse und Status Quo},
  series = {Facility Management Messe 2012 Tagungsband},
  booktitle = {Facility Management Messe 2012 Tagungsband},
  publisher = {VDE Verlag 2012},
  address   = {Berlin, Offenbach},
  pages     = {157 -- 170},
  year      = {2012},
  language  = {de}
}
@incollection{BERNHOLDKALINGLELLEK2012,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, V.},
  title     = {Productivity Measurement Model - A Holistic Approach For Services},
  series = {JUNGHANS, A.; JENSEN, P. A (Editors) Proceedings of the 11th EuroFM Research Symposium, 24.-25. May 2012 in Copenhagen, Denmark},
  booktitle = {JUNGHANS, A.; JENSEN, P. A (Editors) Proceedings of the 11th EuroFM Research Symposium, 24.-25. May 2012 in Copenhagen, Denmark},
  publisher = {Polyeknisk Forlag 2012},
  address   = {Lyngby :},
  pages     = {20 -- 30},
  year      = {2012},
  language  = {en}
}
@incollection{BERNHOLDKALINGLELLEK2012,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, M.},
  title     = {Produktivit{\"a}tsmessung von Immobilien-Services - empirische Analyse und Status Quo},
  series = {Facility Management Messe 2012 Tagungsband},
  booktitle = {Facility Management Messe 2012 Tagungsband},
  publisher = {VDE Verlag},
  address   = {Berlin, Offenbach},
  isbn      = {978-3-8007-3417-7},
  pages     = {157 -- 170},
  year      = {2012},
  language  = {de}
}
@misc{BERNHOLDKALINGLELLEK2011,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, M.},
  title     = {Measurement of productivity of property services: an empiric analysis of the status quo, XXI. International RESER Conference, Hamburg, 07.09.-10.09.2011},
  year      = {2011},
  language  = {en}
}
@incollection{BERNHOLDKALINGLELLEK2011,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, M.},
  title     = {Produktivit{\"a}tsmessung von Dienstleistungen},
  series = {BERNHOLD, T.; GELLENBECK, K.; RIEMENSCHNEIDER, F., M{\"u}nsteraner Schriften zum Faclity Management},
  booktitle = {BERNHOLD, T.; GELLENBECK, K.; RIEMENSCHNEIDER, F., M{\"u}nsteraner Schriften zum Faclity Management},
  publisher = {INFA-ISFM e.V.},
  address   = {M{\"u}nster, Ahlen},
  isbn      = {978-3-00-036210-1},
  pages     = {108 -- 122},
  year      = {2011},
  language  = {de}
}
@incollection{BERNHOLDKALINGLELLEK2011,
  author    = {BERNHOLD, T. and KALING, N. and LELLEK, M.},
  title     = {Measurement of productivity of property services - an empiric analysis of the status quo},
  series = {GANZ, W.; KIRCHERER, F.; SCHLETZ, A. (Hrsg.); Productivity of Services NextGen - Beyond Output/Input},
  booktitle = {GANZ, W.; KIRCHERER, F.; SCHLETZ, A. (Hrsg.); Productivity of Services NextGen - Beyond Output/Input},
  edition   = {1. Aufl.},
  publisher = {Fraunhofer Verlag},
  address   = {Stuttgart},
  isbn      = {978-3-8396-0297-3},
  pages     = {190 -- 191},
  year      = {2011},
  language  = {en}
}
@misc{BERNHOLDHERRMANNBUeTTNERetal.2008,
  author    = {BERNHOLD, T. and HERRMANN, T. and B{\"U}TTNER, B. and MAY, M. and RIEMENSCHNEIDER, F.},
  title     = {Ein ganzheitliches FM-Einf{\"u}hrungsmodell auf der Basis von Referenzprozessen, FM-Tagung 2008},
  year      = {2008},
  language  = {de}
}