Review of PPX Business Models: Adaptability and Feasibility of PPX Models in the Equipment Manufacturing Industry. - Veli-Matti Uski; Prasanna Kumar Kukkamalla; Hannu Kärkkäinen; Karan Menon; Sameer Mittal; Muztoba Ahmad Khan; Thorsten Wuest (PLM (1), 2021)

Data Analytics Capability Roadmap for PPO Business Models in Equipment Manufacturing Companies. - Prasanna Kumar Kukkamalla; Veli-Matti Uski; Olli Kuismanen; Hannu Kärkkäinen; Karan Menon (PLM, 2022)

Assessing the Readiness of the Emerging Ecosystem (Actor) for the Pay-per-Outcome Business Model. - Prasanna Kumar Kukkamalla; Veli-Matti Uski; Olli Kuismanen; Hannu Kärkkäinen; Karan Menon (PRO-VE, 2022)

Capabilities toward adoption of outcome-based contracts. - Sameer Mittal; Veli-Matti Uski; Vinod Yadav; Muztoba Ahmad Khan; Hannu Kärkkäinen (J. Enterp. Inf. Manag., 2025)