@article{Pilawa:2003,
  author  = "B. Pilawa and A. Więckowski and H. Wachowska and M. Kozłowski",
  title   = "Effect of reduction and butylation on coal : application of microwave saturation of two-component EPR spectra",
  journal = "Applied Magnetic Resonance",
  volume  = "Vol. 24",
  number  = "no 1",
  pages   = "73--83",
  year    = "2003",
}