@phdthesis{Christoph1987,
  author    = {Christoph, Rainer},
  title     = {Zerst{\"o}rungsfreie Pr{\"u}fung der Oberfl{\"a}chenverfestigung.},
  institution = {Ingenieurhochschule},
  pages     = {119 S.: 80 Abb., 10 Tab., Anl.},
  year      = {1987},
  language  = {de}
}