@inproceedings{CTT100652216,
  author = {Toshiyuki Atou and Y. Sano and Masahide Katayama and SHIZUO HAYASHI},
  title = {Damage Evaluation of Reinforced Concrete Columns by Hypervelocity Impact},
  booktitle = {the proceedings of the 12th Hypervelocity impact society},
  year = 2012,
}