@article{CTT100737598,
  author = {花岡 伸也 and 康 書陽 and 宮本 秀晴 and 角田 昂哉},
  title = {北東アジアのトランジット空港選択の実態とその要因},
  journal = {運輸政策研究},
  year = 2017,
}

@inproceedings{CTT100679101,
  author = {Shinya HANAOKA and Shuyang Kang and Makoto Tsukai},
  title = {Passenger characteristics and their mode choice between air transport and high speed rail in China},
  booktitle = {},
  year = 2014,
}