@article{Porankiewicz:2012,
  author  = "B. Porankiewicz and L. Ma³dziński and G. Wieloch",
  title   = "The effect of gas nitriding on wear of drill bits during particle board drilling",
  journal = "Computational Methods in Science and Technology",
  volume  = "Vol. 18",
  number  = "no 2",
  pages   = "103--109",
  year    = "2012",
}