Combined “steel-hard alloy” outfitting of rock-breaking drilling tool

@article{Ginzburg1999CombinedA,
  title={Combined “steel-hard alloy” outfitting of rock-breaking drilling tool},
  author={{\'E}. S. Ginzburg},
  journal={Chemical and Petroleum Engineering},
  year={1999},
  volume={35},
  pages={725-729}
}