@article{CTT100565385,
  author = {Kenjiro Tadakuma and Riichiro Tadakuma and Shigeo Hirose},
  title = {Motions on Steps and Slopes of Omni-Directional Mobile Robot ,"VmaxCarrier2"},
  journal = {Int. Society for Advanced Research,Recent advances in Control Systeme,Robotics and Automation Second edition},
  year = 2007,
}

@inproceedings{CTT100612209,
  author = {Kenjiro TADAKUMA and Riichiro TADAKUMA and Shigeo HIROSE},
  title = {Omni-Directional Mobile Robot with Step-Climbing Capability: “VmaxCarrier2”},
  booktitle = {1st IEEE Technical Exhibition Based Conference on Robotics and Automation Proceedings( TExCRA 2004 )},
  year = 2004,
}