@article{CTT100589915,
  author = {菅原 能生 and 風戸 昭人 and 富岡 隆弘 and MITSUJI SAMPEI},
  title = {鉄道車両の１次ばね系の減衰制御による上下振動低減（新幹線電車による高速走行試験結果）},
  journal = {日本機械学会論文集（C編）},
  year = 2008,
}

@article{CTT100551115,
  author = {Yoshiki Sugahara and Tadao Takigami and Mitsuji Sampei},
  title = {Suppressing Vertical Vibration in Railway Vehicles through Primary Suspension Damping Force Control},
  journal = {Journal of System Design and Dynamics},
  year = 2007,
}

@article{CTT100521358,
  author = {Yoshiki Sugahara and Tadao Takigami and Mitsuji Sampei},
  title = {Vertical Vibration Suppression of Railway Vehicle by Using Variable Coefficient Axle Dampers},
  journal = {Transactions of the Japan Society of Mechanical Engineers (C)},
  year = 2006,
}

@inproceedings{CTT100551152,
  author = {Yoshiki Sugahara and Akihito Kazato and Takahiro Tomioka and reiko koganei and MITSUJI SAMPEI},
  title = {Vertical Vibration Suppression of Railway Vehicle by Primary and Secondary Suspension Damping Force Control},
  booktitle = {Proceedings of the TRANSLOG 2007},
  year = 2007,
}

@inproceedings{CTT100551151,
  author = {Yoshiki Sugahara and Akihito Kazato and Takahiro Tomioka and MITSUJI SAMPEI},
  title = {Vertical Vibration Suppression of Railway Vehicle by Primary Suspension Damping Force Control},
  booktitle = {Proceedings of the Dynamics and Design Conference 2007},
  year = 2007,
}

@inproceedings{CTT100551127,
  author = {Yoshiki Sugahara and Tadao Takigami and Akihito Kazato and Reiko Koganei and Mitsuji Sampei},
  title = {Improvement of Vertical Ride Comfort of Railway Vehicle by Primary Suspension Damping Force Control},
  booktitle = {Proceedings of the 12th Asia-Pacific Vibration Conference},
  year = 2007,
}