@book{EngelnMuellgesReutter1991,
  author    = {Engeln-M{\"u}llges, Gisela and Reutter, Fritz},
  title     = {Formelsammlung zur numerischen Mathematik mit Quick-BASIC-Programmen. Anh. Quick-BASIC-Programme / von J{\"u}rgen Dietel ... / von Gisela Engeln-M{\"u}llges und Fritz Reutter},
  publisher = {BI-Wiss.-Verl.},
  address   = {Mannheim, Wien , Z{\"u}rich},
  isbn      = {3-411-14312-6},
  pages     = {XXIV, 1006 S., 24 cm},
  year      = {1991},
  language  = {de}
}
@book{EngelnMuellgesZimmermann1992,
  author    = {Engeln-M{\"u}llges, Gisela and Zimmermann, Hans-J{\"u}rgen},
  title     = {Methoden und Modelle des Operations Research : f{\"u}r Ingenieure, {\"O}konomen und Informatiker / Hans-J{\"u}rgen Zimmermann. [Hrsg. von Gisela Engeln-M{\"u}llges] - 2., {\"u}berarb. Aufl.},
  publisher = {Vieweg},
  address   = {Braunschweig ; Wiesbaden},
  isbn      = {3-528-18917-7},
  pages     = {XVI, 385 S. : graph. Darst. ; 23 cm},
  year      = {1992},
  language  = {de}
}
@article{Frings1999,
  author    = {Frings, Michael},
  title     = {Der Widerruf von Haust{\"u}rgesch{\"a}ften},
  series = {Neue Wirtschafts-Briefe. Fach 19},
  journal   = {Neue Wirtschafts-Briefe. Fach 19},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  address   = {Herne [u.a.]},
  pages     = {2427 -- 2436},
  year      = {1999},
  language  = {de}
}
@article{Frings2000,
  author    = {Frings, Michael},
  title     = {Das Fernabsatzgesetz},
  series = {Neue Wirtschafts-Briefe. Fach 19},
  journal   = {Neue Wirtschafts-Briefe. Fach 19},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  address   = {Herne [u.a.]},
  pages     = {2611 -- 2622},
  year      = {2000},
  language  = {de}
}
@article{Frings2001,
  author    = {Frings, Michael},
  title     = {Das Verbraucherkreditgesetz},
  series = {Neue Wirtschafts-Briefe. Fach 21},
  journal   = {Neue Wirtschafts-Briefe. Fach 21},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  address   = {Herne [u.a.]},
  pages     = {1411},
  year      = {2001},
  language  = {de}
}
@article{Frings2002,
  author    = {Frings, Michael},
  title     = {Das allgemeine Leistungsst{\"o}rungsrecht im BGB nach der Schuldrechtsmodernisierung 2002},
  series = {Neue Wirtschafts-Briefe. Fach 19},
  journal   = {Neue Wirtschafts-Briefe. Fach 19},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  address   = {Herne [u.a.]},
  pages     = {2853},
  year      = {2002},
  language  = {de}
}
@article{Frings2002,
  author    = {Frings, Michael},
  title     = {Das neue Verbraucherschutzrecht im BGB},
  series = {Neue Wirtschafts-Briefe. Fach 19},
  journal   = {Neue Wirtschafts-Briefe. Fach 19},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  address   = {Herne [u.a.]},
  pages     = {2851},
  year      = {2002},
  language  = {de}
}
@article{Frings2004,
  author    = {Frings, Michael},
  title     = {Kreditfinanzierte Immobiliengesch{\"a}fte und Verbraucherschutz},
  series = {Neue Wirtschafts-Briefe. Fach 21},
  journal   = {Neue Wirtschafts-Briefe. Fach 21},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  address   = {Herne [u.a.]},
  pages     = {1495},
  year      = {2004},
  language  = {de}
}
@article{Frings2001,
  author    = {Frings, Michael},
  title     = {Erlassvertrag durch Scheckeinl{\"o}sung (BGH, Urteil vom 10.05.2001)},
  series = {Betriebs-Berater : BB ; Zeitschrift f{\"u}r Recht und Wirtschaft (2001)},
  journal   = {Betriebs-Berater : BB ; Zeitschrift f{\"u}r Recht und Wirtschaft (2001)},
  isbn      = {0340-7918},
  pages     = {1762},
  year      = {2001},
  language  = {de}
}
@article{GartzenGebhardtAngeretal.1994,
  author    = {Gartzen, Johannes and Gebhardt, Andreas and Anger, A. and Petschke, U. and Lingens, Hans},
  title     = {Laserstrahlschweißen mit Schweißdraht von W{\"a}rmetauschern mit hohem Wirkungsgrad},
  series = {Proceedings : Aachen, Germany, 31st October - 4th November, 1994 / 27th ISATA},
  journal   = {Proceedings : Aachen, Germany, 31st October - 4th November, 1994 / 27th ISATA},
  publisher = {Automotive Automation},
  address   = {Croydon},
  isbn      = {0-947719-64-4},
  pages     = {397 -- 403},
  year      = {1994},
  language  = {de}
}