@article{CTT100564788,
  author = {Masayuki Arai and Shigeo Hirose},
  title = {Development of Cable Reel for Spherical Trailer -Uniform Cable Winding},
  journal = {Journal of Robotics and Mechatronics},
  year = 2008,
}

@article{CTT100565372,
  author = {Masayuki Arai and Yoshinori Tanaka and Shigeo Hirose},
  title = {Development of "Souryu-VI" and "Souryu-V:" Serially Connected Crawler Vehicles for in-Rubble Searching Operations},
  journal = {Journal of Field Robotics},
  year = 2008,
}