Pastuszak, M., Bryhn, A. C., Håkanson, L., Stålnacke, P., Zalewski, M., & Wodzinowski, T. (2018). Reduction of nutrient emission from Polish territory into the Baltic Sea (1988–2014) confronted with real environmental needs and international requirements. Oceanological and Hydrobiological Studies, 47(2), 140–166. Retrieved from https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/8618