@article{Jędrczak:2007,
  author  = "A. Jędrczak and D. Królik",
  title   = "Influence of paper particle size on the efficiency of digestion process",
  journal = "Environment Protection Engineering",
  volume  = "Vol. 33",
  number  = "no 2",
  pages   = "147--155",
  year    = "2007",
}