@article{CTT100813322,
  author = {Shuo Cheng and Aimin Li and Kunio Yoshikawa},
  title = {High Quality Oil Recovery from Oil Sludge Employing a Pyrolysis Process with Oil Sludge Ash Catalyst},
  journal = {International Journal of Waste Resources},
  year = 2015,
}

@inproceedings{CTT100813364,
  author = {Shuo Cheng and Yuhua Wang and Zhangzhao Ma and Yu Zhai and AiMin Li and Kunio Yoshikawa},
  title = {Pyrolysis of Oil Sludge with Oil Sludge Ash catalyst a Stirred Tank Reactor},
  booktitle = {},
  year = 2015,
}