@inproceedings{sgem2009paper,
  title = {EFFECT OF ENVIRONMENTAL POLICIES ON COSTS AND PROFITABILITY OF COMPANY IN PURCHASING DECISIONS OF HEALTHCARE INSTITUTIONS},
  author = {A. Tukel and O. Yarar and O. Ozyaral},
  booktitle = {9th International Multidisciplinary Scientific GeoConference SGEM2009},
  year = {2009},
  pages = {729-736},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}