Grzelak, Michał, Marek Szostak, Paulina Rzepka, and Arkadiusz Kloziński. 2025. “Comparison of Post-Consumer Recycling PET Bottles Production from Flakes and Regranulates”. Polimery 70 (7-8). https://doi.org/10.14314/polimery.2025.7.7.