@article{Krolczyk:2019,
  author  = "G. Krolczyk and R. Maruda and J. Krolczyk and S. Wojciechowski and M. Mia and P. Nieslony and G. Budzik",
  title   = "Ecological trends in machining as a key factor in sustainable production - A review",
  journal = "Journal of Cleaner Production",
  volume  = "Vol. 218",
  pages   = "601--615",
  year    = "2019",
}