@misc{indiciaee001ca6875bc,
  title = {Possible correlation between work-hardening and fatigue-failure},
  author = {Kettunen, P. O. and Kocks, U. F.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690000407},
  note = {Source identifier: 19690000407}
}