@article{Śliwińska:2015,
  author  = "A. Śliwińska and M. Drab",
  title   = "Changes in the content of humic substances, reaction and sorption properties occuring in reclaimed land in post-mining areas",
  journal = "Polish Journal of Soil Science",
  volume  = "Vol. 48",
  number  = "no. 2",
  pages   = "189--195",
  year    = "2015",
}