1. The nature of plastics and their societal usage;Millet;Plast. Environ.,2018
2. PlasticsEurope, 2021, Plastics - the Facts 2021, An Analysis of European Plastics Production, Demand and Waste Data.
3. United Nations Environment Assembly (UNO), 2018, in: Proceedings of the Consolidated Background Paper of the Discussion Papers Presented at the First Meeting of the Ad Hoc Open-ended Expert Group on Marine Litter and Microplastics, Nairobi, from 29 to 31 May 2018.
4. European Commission, Communication (EU) 28 final from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions, in: Proceedings of the a European Strategy for Plastics in a Circular Economy. Brussels, 2018, 20.
5. European Commission. Communication (EU) 98 final from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions, in: Proceedings of the a New Circular Economy Action Plan for a Cleaner and More Competitive Europe, Brussels, 2020, 20.