Trzciński, Karol, and Magdalena Zielińska. 2021. “Challenges and Development Directions of Membrane Bioreactors Operated on Passenger Ships in International Shipping”. Acta Universitatis Lodziensis. Folia Biologica Et Oecologica 17 (September):42-47. https://doi.org/10.18778/1730-2366.16.13.