2015

• Olsson, Nils; Bull-Berg, Heidi. (2015) Use of big data in project evaluations. International Journal of Managing Projects in Business. volum 8 (3).
  Academic article
• Olsson, Nils; Sørensen, Anette Østbø; Leikvam, Gunnar. (2015) On the Need for Iterative Real Estate Project Models – Applying Agile Methods in Real Estate Developments. Procedia Economics and Finance. volum 21.
  Academic article
• Stendebakken, Mari Oline Giske; Grytli, Eir Ragna; Olsson, Nils. (2015) Proposed aspects for evaluation of the value of spaces in historic buildings. Procedia Economics and Finance. volum 21.
  Academic article
• Sørensen, Anette Østbø; Olsson, Nils; Ekambaram, Anandasivakumar. (2015) Evaluation and Learning – Experiences from a Construction Project in Norway. Procedia Economics and Finance. volum 21.
  Academic article

2014

• Junghans, Antje; Olsson, Nils. (2014) Discussion of facilities management as an academic discipline: To what extent are the general requirements met and what does it mean?. Facilities. volum 32 (1/2).
  Academic article
• Krane, Hans Petter; Olsson, Nils. (2014) Uncertainty management of projects from the owners’ perspective, with main focus on managing delivered functionality. International Journal of Managing Projects in Business. volum 7 (1).
  Academic article
• Leikvam, Gunnar; Olsson, Nils. (2014) Eiendomsutvikling. Fagbokforlaget. 2014. ISBN 978-82-450-1679-6.
  Textbook
• Olsson, Nils; Spjelkavik, Ingrid. (2014) Assumption surfacing and monitoring as a tool in project risk management. International Journal of Project Organisation and Management. volum 6 (1/2).
  Academic article
• Rolstadås, Asbjørn; Olsson, Nils; Johansen, Agnar; Langlo, Jan Alexander. (2014) Praktisk prosjektledelse - Fra ide til gevinst. Fagbokforlaget. 2014. ISBN 978-82-450-1690-1.
  Textbook

2013

• Klakegg, Ole Jonny; Kjølle, Kari; Mehaug, Cecilie Gillesen; Olsson, Nils; Shiferaw, Asmamaw Tadege; Woods, Ruth. (2013) 7th Nordic Conference on Construction Economics and Organisation, Trondheim, June 12-14, 2013. Akademika forlag. 2013. ISBN 978-82-321-0273-0.
  Academic anthology/Conference proceedings
• Klungseth, Nora Johanne; Olsson, Nils. (2013) Norwegian cleaning research: an overview and categorization. Facilities. volum 31 (7/8).
  Academic literature review

2012

• Krane, Hans Petter; Olsson, Nils; Rolstadås, Asbjørn. (2012) How Project Manager – Project Owner Interaction Can Work within and Influence Project Risk Management. Project Management Journal. volum 43 (2).
  Academic article
• Krane, Hans Petter; Rolstadås, Asbjørn; Olsson, Nils. (2012) A Case Study of How Stakeholder Management Influenced Project Uncertainty Regarding Project Benefits. International Journal of Information Technology Project Management. volum 3 (2).
  Academic article
• Olsson, Nils; Økland, Andreas; Halvorsen, Siri Bøe. (2012) Consequences of differences in cost-benefit methodology in railway infrastructure appraisal - A comparison between selected countries. Transport Policy. volum 22.
  Academic article
• Valen, Marit Støre; Olsson, Nils. (2012) Are we heading towards mature facilities management in Norwegian municipalities?. Journal of Facilities Management. volum 10 (4).
  Academic article

2011

• Andersen, Bjørn; Olsson, Nils; Onsøyen, Lars Edgar; Spjelkavik, Ingrid. (2011) Post-project changes: occurrence, causes, and countermeasures. International Journal of Managing Projects in Business. volum 4 (2).
  Academic article
• Hansen, Geir Karsten; Olsson, Nils. (2011) Layered Project - Layered Process: Lean Thinking and Flexible Solutions. Architectural Engineering and Design Management. volum 7 (2).
  Academic article
• Krane, Hans Petter; Rolstadås, Asbjørn; Olsson, Nils. (2011) An empirical analysis of project risk in a time perspective. International Journal of Project Organisation and Management. volum 3 (1).
  Academic article
• Olsson, Nils. (2011) Praktisk rapportskriving. Tapir Akademisk Forlag. 2011. ISBN 978-82-519-2771-0.
  Textbook
• Olsson, Nils; Mads, Veiseth. (2011) Jernbanetrafikk. Tapir Akademisk Forlag. 2011. ISBN 9788251925297.
  Academic monograph
• Valen, Marit Støre; Olsson, Nils; Bjørberg, Svein; Gissinger, Håkon Kvåle. (2011) Bygningsvedlikehold - bedre planlegging en nøkkel til bedre vedlikehold. Tapir Akademisk Forlag. 2011. ISBN 9788251927543. Temahefte (Norges teknisk-naturvitenskapelige universitet. Fakultet for arkitektur og billedkunst) (4).
  Non-fiction book
• Veiseth, Mads; Hegglund, Per Magnus; Wien, Iver; Olsson, Nils; Stokland, Øivind. (2011) Development of a punctuality improvement method. The TQM Journal. volum 23 (3).
  Academic article

2010

• Klakegg, Ole Jonny; Olsson, Nils. (2010) An empirical illustration of public project ownership. International Journal of Project Organisation and Management. volum 2 (1).
  Academic article
• Krane, Hans Petter; Rolstadås, Asbjørn; Olsson, Nils. (2010) Categorizing Risks in Seven Large Projects-Which Risks Do the Projects Focus On?. Project Management Journal. volum 41 (1).
  Academic article
• Olsson, Nils. (2010) Den undervurderte betydningen av flaks og trynefaktor. Prosjektledelse.
  Article
• Olsson, Nils; Frydenberg, Stein; Jakobsen, Erik W.; Jessen, Svein Arne. (2010) In search of project substance: how do private investors evaluate projects?. International Journal of Managing Projects in Business. volum 3 (2).
  Academic article
• Olsson, Nils; Hansen, Geir Karsten. (2010) Identification of Critical Factors Affecting Flexibility in Hospital Construction Projects. Health Environments Research & Design Journal. volum 3 (2).
  Academic article
• Olsson, Nils; Krane, Hans Petter; Rolstadås, Asbjørn; Veiseth, Mads. (2010) Influence of reference points in ex post evaluations of rail infrastructure projects. Transport Policy. volum 17 (4).
  Academic article

2009

• Cui, Yu; Olsson, Nils. (2009) Project flexibility in practice: An empirical study of reduction lists in large governmental projects. International Journal of Project Management. volum 27 (5).
  Academic article
• Klakegg, Ole Jonny; Olsson, Nils. (2009) Hvem eier et statlig prosjekt?. Stat og styring. volum 19 (2).
  Academic article

2008

• Olsson, Nils; Johansen, Agnar; Langlo, Jan Alexander; Torp, Olav. (2008) Project ownership: implications on success measurement. Measuring Business Excellence. volum 12 (1).
  Academic article
• Klakegg, Ole Jonny; Olsson, Nils. (2008) Modell for prosjekteierskap i Staten. Prosjektledelse.
  Article
• Olsson, Nils. (2008) Conflics related to effectiveness and efficiency in Norwegian rail and hospital projects. Projektitoiminta. volum 29 (1).
  Academic article
• Olsson, Nils. (2008) External and internal flexibility - aligning projects with the business strategy and executing projects efficiently. International Journal of Project Organisation and Management. volum 1 (1).
  Academic article
• Olsson, Nils; Magnussen, Ole Morten. (2008) Flexibility at different stages in the life cycle of projects: an empirical illustration of the "freedom to maneuver". Project Management Journal. volum 38 (4).
  Academic article

2006

• Magnussen, Ole Morten; Olsson, Nils. (2006) Comparative analysis of cost estimates of major public investment projects. International Journal of Project Management. volum 24 (4).
  Academic article
• Olsson, Nils. (2006) Management of flexibility in projects. International Journal of Project Management. volum 24 (1).
  Academic article
• Olsson, Nils. (2006) Impact analysis of railway projects in a flexibility perspective. Transport reviews. volum 26.
  Academic article
• Torp, Olav; Magnussen, Ole Morten; Olsson, Nils; Klakegg, Ole Jonny. (2006) Kostnadsusikkerhet i store stalige investeringsprosjekter. Concept rapport.
  Academic article

2004

• Olsson, Nils. (2004) Influencing factors on train punctuality - results from some Norwegian studies. Transport Policy. volum 11 (4).
  Academic article
• Olsson, Nils; Austeng, Kjell; Samset, Knut Fredrik; Lædre, Ola. (2004) Ensuring Quality-at-entry: Challenges in Front-end Management. Projektitoiminta. volum 27 (1).
  Academic article

2001

• Olsson, Nils. (2001) Forskningsprogrammet CONCEPT - Risikoanalyse og konseptvurdering i tidligfaasen. Prosjektledelse. volum 2.
  Popular scientific article