@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}
}
@book{AltSchumny1982,
  author    = {Alt, Helmut and Schumny, Harald},
  title     = {Programmierung mathematischer Algorithmen (Vieweg-Programmbibliothek Taschenrechner ; 1) / Helmut Alt ; Harald Schumny [Hrsg.]},
  publisher = {Vieweg + Teubner},
  address   = {Wiesbaden},
  isbn      = {3-528-04211-7},
  pages     = {92 S.},
  year      = {1982},
  language  = {de}
}
@article{Alt1975,
  author    = {Alt, Helmut},
  title     = {Elektro-Brikett-Zentralspeicherheizung soll die Spitzenlast der EVU schonen},
  series = {Energiewirtschaftliche Tagesfragen},
  volume    = {25},
  journal   = {Energiewirtschaftliche Tagesfragen},
  number    = {4},
  publisher = {VDE-Verlag},
  address   = {Berlin},
  issn      = {0720-6240},
  pages     = {148 -- 149},
  year      = {1975},
  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}
}
@incollection{Krause2001,
  author    = {Krause, Gregor},
  title     = {Brenchmarking elektrischer Energie in Zweckbauten - Aussagef{\"a}higkeit von Energiekennzahlen},
  series = {Betriebliches Energiemanagement : Tagung Cottbus, 6. und 7. M{\"a}rz 2001. (VDI-Berichte ; 1593)},
  booktitle = {Betriebliches Energiemanagement : Tagung Cottbus, 6. und 7. M{\"a}rz 2001. (VDI-Berichte ; 1593)},
  publisher = {VDI-Verlag},
  address   = {D{\"u}sseldorf},
  isbn      = {3180915935},
  pages     = {413 -- 422},
  year      = {2001},
  language  = {de}
}
@inproceedings{Krause2002,
  author    = {Krause, Gregor},
  title     = {Energiemanagement in Geb{\"a}uden},
  series = {Energiemanagement in Geb{\"a}uden : 24. April 2002 : Tagung und Ausstellung},
  booktitle = {Energiemanagement in Geb{\"a}uden : 24. April 2002 : Tagung und Ausstellung},
  publisher = {Fachhochschule Aachen},
  address   = {Aachen},
  pages     = {1 -- 10},
  year      = {2002},
  language  = {de}
}
@book{Muehl2014,
  author    = {M{\"u}hl, Thomas},
  title     = {Einf{\"u}hrung in die elektrische Messtechnik : Grundlagen, Messverfahren, Anwendungen. - 4. aktualisierte u. erw. Aufl.},
  edition   = {4., aktualisierte u. erw. Aufl.},
  publisher = {Springer},
  address   = {Wiesbaden},
  isbn      = {978-3-8348-2063-1 ; 978-3-8348-0899-8},
  pages     = {XI, 320 S.},
  year      = {2014},
  language  = {de}
}
@book{Huening2016,
  author    = {H{\"u}ning, Felix},
  title     = {Sensoren und Sensorschnittstellen},
  publisher = {De Gruyter Oldenbourg},
  address   = {Berlin},
  isbn      = {978-3-11-043854-3},
  pages     = {VII, 237 S. : Ill., graph. Darst.},
  year      = {2016},
  language  = {de}
}