@article{article1211,
  title = {Liquefaction of pretreated Turkish coals with microwave energy},
  author = {ZERVENT, R. and YAĞMUR, E. and ŞİMŞEK, E.H. and TOĞRUL, T.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2006},
  volume = {24},
  pages = {122-131},
  doi = {}
}