@article{oai:nitech.repo.nii.ac.jp:00006439,
 author = {Nishimura, N. and Fujimoto, K. and Ogi, Y. and Ito, Toshihiro},
 journal = {Ultrasonics},
 month = {Feb},
 note = {application/pdf},
 pages = {88--93},
 title = {Evolution of spall-damage in iron caused by repeated plate impacts: Ultrasonic evaluation},
 volume = {83},
 year = {2018}
}