@incollection{Friedrich,
  author    = {Friedrich, Volker},
  title     = {Zur Rhetorik der Technik},
  series = {Technik denken. Philosophische Ann{\"a}herungen - Festschrift f{\"u}r Klaus Kornwachs},
  publisher = {Franz Steiner Verlag},
  address   = {Stuttgart},
  isbn      = {978-3-515-12039-5},
  pages     = {249 -- 259},
  language  = {de}
}
@incollection{Friedrich,
  author    = {Friedrich, Volker},
  title     = {Technik denken - eine Ann{\"a}herung},
  series = {Technik denken. Philosophische Ann{\"a}herungen - Festschrift f{\"u}r Klaus Kornwachs},
  publisher = {Franz Steiner Verlag},
  address   = {Stuttgart},
  isbn      = {978-3-515-12039-5},
  pages     = {9 -- 11},
  language  = {de}
}
@incollection{Friedrich,
  author    = {Friedrich, Volker},
  title     = {Eine nicht nur philosophische Ann{\"a}herung},
  series = {Technik denken. Philosophische Ann{\"a}herungen - Festschrift f{\"u}r Klaus Kornwachs},
  publisher = {Franz Steiner Verlag},
  address   = {Stuttgart},
  isbn      = {978-3-515-12039-5},
  pages     = {321 -- 322},
  language  = {de}
}