@article{CTT100592793,
  author = {Y Sugahara and A Kazato and R Koganei and M Sampei and S Nakaura},
  title = {Suppression of vertical bending and rigid-body-mode vibration in railway vehicle car body by primary and secondary suspension control: results of simulations and running tests using Shinkansen vehicle},
  journal = {Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit},
  year = 2009,
}

@article{CTT100589914,
  author = {Yoshiki Sugahara and Tadao Takigami and Akihito Kazato and Reiko Koganei and Mitsuji Sampei},
  title = {Suppression of Vertical Vibration in Railway Vehicles by Damping Force Control of Primary Suspension Using an LQG Controller},
  journal = {Journal of System Design and Dynamics},
  year = 2008,
}

@inproceedings{CTT100551152,
  author = {菅原能生 and 風戸昭人 and 富岡隆弘 and 小金井玲子 and 三平満司},
  title = {１次および２次ばねの減衰制御を併用した鉄道車両の上下振動低減（現車走行試験結果）},
  booktitle = {日本機械学会 交通・物流部門講演会 論文集},
  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,
}