@article{376509,
      author = {Engel, Peter A},
      title = {{Impact wear of materials / Peter A. Engel}},
      publisher = {Elsevier Scientific Pub. Co. ;. Elsevier Scientific Pub.  Co. ;},
      address = {Amsterdam ;},
      pages = {xiv, 339 p. :},
      year = {1978},
}