@article{Bielefeldt:2011,
  author  = "K. Bielefeldt and W. Papacz and J. Walkowiak",
  title   = "Environmentally friendly car plastics in automotive engineering. Part 1",
  journal = "Archiwum Motoryzacji =The Archives of Automotive Engineering",
  number  = "nr 2",
  pages   = "5--19",
  year    = "2011",
}