1. Ahluwalia, G., 2016. Device Democracy. The Next Generation of IoT Technologies Using the Blockchain, https://youtu.be/hwaBM-kQeqc.
2. The impact of product life cycle on supply chain strategy;Aitken;Int. J. Prod. Econ.,2003
3. C2PS : a digital twin architecture reference model for the cloud-based cyber-physical systems;Alam;J. LaTeX Cl. Files.,2017
4. Installed Base Information: Ensuring Customer Value and Profitability After the Sale;Ala-risku,2009
5. Estonia in Global Value Chains, Helsinki;Ali-Yrkkö,2017