@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {1,45 Mrd. DM f{\"u}r die Kohlevergasung},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {24},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {5},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {243 -- 244},
  year      = {1974},
  language  = {de}
}
@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {Ab 1975 Uranerz aus Rabbit-Lake},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {24},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {1/2},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {34},
  year      = {1974},
  language  = {de}
}
@book{Alt1980,
  author    = {Alt, Helmut},
  title     = {Allgemeine Elektrotechnik, Nachrichtentechnik, Impulstechnik f{\"u}r UPN-Rechner. (Anwendung programmierbarer Taschenrechner ; 2)},
  publisher = {Vieweg},
  address   = {Braunschweig [u.a.]},
  isbn      = {3-528-04151-X},
  pages     = {VII, 109 S. : graph. Darst.},
  year      = {1980},
  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}
}
@book{Alt1979,
  author    = {Alt, Helmut},
  title     = {Angewandte Mathematik, Finanzmathematik, Statistik, Informatik f{\"u}r UPN-Rechner. (Anwendung programmierbarer Taschenrechner ; 1)},
  publisher = {Vieweg},
  address   = {Braunschweig [u.a.]},
  isbn      = {3-528-04150-1},
  pages     = {VIII, 162 S : graph. Darst.},
  year      = {1979},
  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}
}
@article{Alt1974,
  author    = {Alt, Helmut},
  title     = {Auswertung von Pr{\"u}fungsergebnissen auf elektronischen Rechenanlagen},
  series = {Angewandte Informatik},
  volume    = {16},
  journal   = {Angewandte Informatik},
  number    = {5},
  publisher = {Vieweg},
  address   = {Braunschweig},
  issn      = {0013-5704},
  pages     = {219 -- 222},
  year      = {1974},
  language  = {de}
}
@phdthesis{Alt1975,
  author    = {Alt, Helmut},
  title     = {Beitrag zur Spannungs-Blindleistungsregelung mit gesteuerten Netzkennlinien},
  address   = {Aachen},
  pages     = {163 S.},
  year      = {1975},
  language  = {de}
}
@article{Alt2002,
  author    = {Alt, Helmut},
  title     = {Belieferung von Kunden in fremden Netzgebieten},
  series = {EW : das Magazin f{\"u}r die Energie-Wirtschaft},
  volume    = {Bd. 101},
  journal   = {EW : das Magazin f{\"u}r die Energie-Wirtschaft},
  number    = {H. 1/2},
  issn      = {0013-5496},
  pages     = {26 -- 35},
  year      = {2002},
  language  = {de}
}
@article{Alt2000,
  author    = {Alt, Helmut},
  title     = {Benchmark der Netznutzungspreise},
  series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt},
  volume    = {Bd. 50},
  journal   = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt},
  number    = {H. 11},
  issn      = {0013-743X},
  pages     = {846 -- 850},
  year      = {2000},
  language  = {de}
}