@article{Płuciennik-Koropczuk:2017,
  author  = "E. Płuciennik-Koropczuk and A. Jakubaszek and S. Myszograj and S. Uszakiewicz",
  title   = "COD fractions in mechanical-biological wastewater treatment plant",
  journal = "Civil and Environmental Engineering Reports",
  volume  = "No. 24 (1)",
  pages   = "207--217",
  year    = "2017",
  note    = "University of Zielona Góra Press, Zielona Góra",
}