@article{uehan_minoura_2015, 
  title={<b>Development of an Aerial Survey System and Numerical Analysis Modeling Software for Unstable Rock Blocks</b>}, 
  volume={56}, 
  DOI={10.2219/rtriqr.56.212}, 
  publisher={Railway Technical Research Institute}, 
  author={UEHAN and MINOURA}, 
  year={2015}
  }