How enablers for lean product development motivate engineers. - Geir Ringen; Halvor Holtskog (Int. J. Comput. Integr. Manuf., 2013)

Knowledge based development practices in systems engineering companies: A comparative study. - Geir Ringen; Torgeir Welo (SysCon, 2015)

Customer-focused development practices in Systems Engineering companies: A case study across industry sectors. - Torgeir Welo; Geir Ringen (SysCon, 2016)

Continuous vs Step Change Production Process Improvement as Enablers for Product Redesign and New Market Opportunities. - Geir Ringen; Kjersti Øverbø Schulte (APMS (2), 2017)

Investigating Maturity of Lean Culture in Product Development Teams. - Torgeir Welo; Geir Ringen; Monica Rossi (ELEC, 2019)

A Novel Value Driven Co-creation Framework. - Geir Ringen; Halvor Holtskog; Torgeir Welo (APMS (1), 2020)

Interorganizational Learning in Manufacturing Networks. - Geir Ringen; Frode Paalsrud; Eirin Lodgaard (APMS (1), 2020)

The role of risk mitigation actions in engineering projects: An empirical investigation. - Ali Shafqat; Josef Oehmen; Torgeir Welo; Geir Ringen (Syst. Eng., 2022)

Rapid Sorting of Post-consumer Scrap Aluminium Alloys Based on Laser-Induced Breakdown Spectroscopy (LIBS). - Md Ali Akram; Ragnar Holthe; Geir Ringen (APMS (4), 2023)