1. A report published by Smithers on November 11, 2021, 'The future of global printing' https://www.smithers.com/services/market-reports/web-archive/the-future-of-global-printing-to-2022
2. An article on DRUPA 2024 website for focus topics, 'Industry 4.0: Digitalization in the Printing & Packaging Industry', https://www.drupa.com/en/Home/Focus_Topics_%7C_drupa_2024/Industry_4.0_Digitalization_in_Print_Packaging_%7C_drupa
3. An article published on the IBM website, 'What is a digital twin' https://www.ibm.com/topics/what-is-a-digital-twin
4. An article published on the PTC website on August 29, 2022 by Colin McMahon 'The ROI of Digital Twin for Industrial Companies' https://www.ptc.com/en/blogs/corporate/roi-of-digital-twin-for-industrial-companies
5. An article published in Global Print Monitor magazine on April 16, 2024, 'Live DRUPA 2024 Demonstrations of Cutting-edge SaaS Platform, frontline.io, Set to Accelerate Market Adoption and Transform Print Industry's Training and Support Services' http://globalprintmonitor.info/en/news/industry-news/prepress/67655-live-drupa-2024-demonstrations-of-cutting-edge-saas-platform-frontline-io-set-to-accelerate-market-adoption-and-transform-print-industry-s-training-and-support-services