1. European Commission: A New Circular Economy Action Plan: For a Cleaner and More Competitive Europe (2020). Accessed https://ec.europa.eu/environment/circular-economy/pdf/new_circular_economy_action_plan.pdf
2. Demira, K.A., Dövena, G., Sezenb, B.: Industry 5.0 and human-robot co-working. Procedia Comput. Sci. 158, 688–695 (2019). 3rd World Conference on Technology, Innovation and Entrepreneurship (WOCTINE)
3. https://en.wikipedia.org/wiki/Waste_management
4. https://www.slrecyclingltd.co.uk/why-is-it-important-to-recycle-metal/
5. https://www.sciencedirect.com/science/article/abs/pii/S0956053X16305189?via%3Dihub