W. Piontek, E. Sidorczuk-Pietraszko, and T. Rachwał, “Will Deposit-Return System will be effective in achieving the objectives of Single Use Plastic Directive for plastic bottles in Poland?”, EiS, vol. 90, no. 3, p. 970, Dec. 2024, doi: 10.34659/eis.2024.90.3.970.