@article{Alt1983,
  author    = {Alt, Helmut},
  title     = {Einsatz programmierbarer Rechner im Sondervertragskundenbereich der Gasversorgung},
  series = {Das Gas- und Wasserfach : Ausgabe Gas, Erdgas : GWF},
  volume    = {Bd. 124},
  journal   = {Das Gas- und Wasserfach : Ausgabe Gas, Erdgas : GWF},
  number    = {H. 9},
  issn      = {0016-4909},
  pages     = {468 -- 471},
  year      = {1983},
  language  = {de}
}
@incollection{Alt1983,
  author    = {Alt, Helmut},
  title     = {Analog anzeigende Digitaluhr},
  series = {FH-Texte ; 36 : Berichte aus dem Fachbereich Elektrotechnik Aachen},
  booktitle = {FH-Texte ; 36 : Berichte aus dem Fachbereich Elektrotechnik Aachen},
  publisher = {Fachhochschule Aachen},
  address   = {Aachen},
  pages     = {98 -- 104},
  year      = {1983},
  language  = {de}
}
@article{Alt1983,
  author    = {Alt, Helmut},
  title     = {Auswertung von Belastungskennlinien},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Bd. 82},
  journal   = {Elektrizit{\"a}tswirtschaft},
  issn      = {0013-5496},
  pages     = {208 -- 210},
  year      = {1983},
  language  = {de}
}
@book{AltSchumny1983,
  author    = {Alt, Helmut and Schumny, Harald},
  title     = {Schreiben, Zeichnen, Tabellieren : (TI-59, HP-41 C) (Vieweg-Programmbibliothek Taschenrechner ; 4) / Helmut Alt ; Harald Schumny [Hrsg.]},
  publisher = {Vieweg + Teubner},
  address   = {Wiesbaden},
  isbn      = {3-528-04233-8},
  pages     = {77 S.},
  year      = {1983},
  language  = {de}
}
@book{AltSchumny1983,
  author    = {Alt, Helmut and Schumny, Harald},
  title     = {Taschenrechnerarithmetik mit erh{\"o}hter Genauigkeit (TI-59/HP-41C) (Vieweg-Programmbibliothek Taschenrechner ; 2) / Helmut Alt ; Harald Schumny [Hrsg.]},
  publisher = {Vieweg + Teubner},
  address   = {Wiesbaden},
  isbn      = {3-528-04229-X ; 978-3-322-91099-8 ; 978-3-528-04229-5},
  pages     = {III, 58 S.},
  year      = {1983},
  language  = {de}
}
@book{AltensenAltSchumny1983,
  author    = {Altensen, Frank and Alt, Helmut and Schumny, Harald},
  title     = {Kryptologie (HP-41 C/CV) : Chiffrierung, Textverschl{\"u}sselung, Datenschutz, Morsealphabet (Vieweg-Programmbibliothek Taschenrechner ; 7) / Helmut Alt ; Harald Schumny [Hrsg.]},
  publisher = {Vieweg + Teubner},
  address   = {Wiesbaden},
  isbn      = {3-528-04256-7},
  pages     = {V, 92 S.},
  year      = {1983},
  language  = {de}
}
@article{HagemannHenningsWernicke1984,
  author    = {Hagemann, Hans-J{\"u}rgen and Hennings, D. and Wernicke, R.},
  title     = {Keramische Vielschichtkondensatoren. Hagemann, H. J.; Hennings, D.; Wernicke, R.},
  series = {Sprechsaal : internat. ceramics \& glass magazine. 117 (1984)},
  journal   = {Sprechsaal : internat. ceramics \& glass magazine. 117 (1984)},
  isbn      = {0341-0439},
  pages     = {924 -- 931},
  year      = {1984},
  language  = {de}
}
@book{MaiSchumnyAlt1984,
  author    = {Mai, Herbert and Schumny, Harald and Alt, Helmut},
  title     = {Lineares Optimieren : Maximierung - Minimierung (Vieweg Programmbibliothek Mikrocomputer ; 14) / Helmut Alt ; Harald Schumny [Hrsg.]},
  publisher = {Vieweg + Teubner},
  address   = {Wiesbaden},
  isbn      = {978-3-663-14049-8 ; 978-3-528-04312-4},
  pages     = {VIII, 100 S.},
  year      = {1984},
  language  = {de}
}
@article{Zastrow1985,
  author    = {Zastrow, Udo},
  title     = {Zum System der Einflußfunktionen f{\"u}r die unendliche anisotrope Scheibe mit statischen und geometrischen Singularit{\"a}ten},
  series = {Archive of Applied Mechanics - Ingenieur Archiv. 55 (1985), H. 2},
  journal   = {Archive of Applied Mechanics - Ingenieur Archiv. 55 (1985), H. 2},
  isbn      = {1432-0681},
  pages     = {124 -- 133},
  year      = {1985},
  language  = {de}
}
@article{Alt1985,
  author    = {Alt, Helmut},
  title     = {Vorteilsausgleich durch Versorgungsunternehmen f{\"u}r Ersatzleistungen Dritter},
  series = {Elektrizit{\"a}tswirtschaft},
  volume    = {Jg. 104},
  journal   = {Elektrizit{\"a}tswirtschaft},
  issn      = {0013-5496},
  pages     = {440 -- 443},
  year      = {1985},
  language  = {de}
}