@inproceedings{sgem2018S20067,
  title = {THE POLISH AIR HUB},
  author = {J. Blachut},
  booktitle = {5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018},
  year = {2018},
  pages = {537-544},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgemsocial2018/5.2/S20.067}
}