@incollection{Doeren1998,
  author    = {D{\"o}ren, Horst-Peter},
  title     = {Aktuelle Fragen zur Schweißmetallurgie. Neue Werkstoffe und ihre schweißtechnische Verarbeitung = Current questions on welding metallurgy},
  series = {Jahrbuch Schweißtechnik '99},
  booktitle = {Jahrbuch Schweißtechnik '99},
  publisher = {DVS-Verlag},
  address   = {D{\"u}sseldorf},
  isbn      = {3-87155-745-5},
  pages     = {77 -- 85},
  year      = {1998},
  language  = {de}
}
@incollection{Doeren1987,
  author    = {D{\"o}ren, Horst-Peter},
  title     = {Nichtrostende St{\"a}hle},
  series = {Jahrbuch Schweißtechnik. 1988},
  booktitle = {Jahrbuch Schweißtechnik. 1988},
  publisher = {Dt. Verl. f{\"u}r Schweißtechnik (DVS)},
  address   = {D{\"u}sseldorf},
  isbn      = {0935-0292},
  pages     = {188 -- 203},
  year      = {1987},
  language  = {de}
}
@incollection{Doeren1990,
  author    = {D{\"o}ren, Horst-Peter},
  title     = {Das Schweißen von Austenit-Ferrit-Verbindungen},
  series = {Jahrbuch Schweißtechnik. 1991},
  booktitle = {Jahrbuch Schweißtechnik. 1991},
  publisher = {DVS-Verlag},
  address   = {D{\"u}sseldorf},
  isbn      = {3-87155-725-0},
  pages     = {57 -- 63},
  year      = {1990},
  language  = {de}
}