Ciechelska, A., M. Kusterka-Jefmańska, and S. Zaremba-Warnke. “Municipal Waste Management As a Polycentric System –the Example of Poland”. Economics and Environment, vol. 83, no. 4, Jan. 2023, pp. 76-90, doi:10.34659/eis.2022.83.4.541.