@article{Hoepner2008,
  author    = {Hoepner, Gert},
  title     = {City-Cards vor neuem Boom - Erfolgsfaktoren regionaler Mehrwertesysteme},
  series = {Direkt-Marketing : Zeitschrift f{\"u}r Dialogmarketing und Integrierte Kommunikation (2008)},
  journal   = {Direkt-Marketing : Zeitschrift f{\"u}r Dialogmarketing und Integrierte Kommunikation (2008)},
  isbn      = {0946-0446},
  pages     = {62 -- 65},
  year      = {2008},
  language  = {de}
}
@book{Hirschberg2008,
  author    = {Hirschberg, Rainer},
  title     = {Energieeffiziente Geb{\"a}ude : bau- und anlagentechnische L{\"o}sungen ; vereinfachte Verfahren zur energetischen Bewertung ; mit 47 Tabellen ; [Praxishandbuch zur EnEV 2007] / Rainer Hirschberg},
  publisher = {M{\"u}ller},
  address   = {K{\"o}ln},
  isbn      = {978-3-481-02227-3},
  pages     = {308 S. : zahlr. graph. Darst.},
  year      = {2008},
  language  = {de}
}
@article{Hirschberg2008,
  author    = {Hirschberg, Rainer},
  title     = {Decentral pumps in heating systems - a new hydraulic approac},
  series = {1st International Rotating Equipment Conference - Pumps and Compressors, 9th Pump Users International Forum, 9. Internationales Pumpenanwenderforum, Final Report, D{\"u}sseldorf, DE, 28.-29. Oct, 2008},
  journal   = {1st International Rotating Equipment Conference - Pumps and Compressors, 9th Pump Users International Forum, 9. Internationales Pumpenanwenderforum, Final Report, D{\"u}sseldorf, DE, 28.-29. Oct, 2008},
  publisher = {-},
  pages     = {1 -- 10},
  year      = {2008},
  language  = {en}
}
@article{HillgaertnerPeier2008,
  author    = {Hillg{\"a}rtner, Michael and Peier, Dirk},
  title     = {Nutzbarkeit bestehender, geschirmter Labore als Modenverwirbelungskammer},
  series = {Elektromagnetische Vertr{\"a}glichkeit : EMV 2008, Internationale Fachmesse und Kongress f{\"u}r Elektromagnetische Vertr{\"a}glichkeit, 19. - 21. Februar 2008, Messe D{\"u}sseldorf / Gonschorek, Karl-Heinz},
  journal   = {Elektromagnetische Vertr{\"a}glichkeit : EMV 2008, Internationale Fachmesse und Kongress f{\"u}r Elektromagnetische Vertr{\"a}glichkeit, 19. - 21. Februar 2008, Messe D{\"u}sseldorf / Gonschorek, Karl-Heinz},
  publisher = {VDE-Verl.},
  address   = {Berlin [u.a.]},
  isbn      = {978-3-8007-3075-9},
  pages     = {579 -- 586},
  year      = {2008},
  language  = {de}
}
@article{HeuermannSadeghfam2008,
  author    = {Heuermann, Holger and Sadeghfam, Arash},
  title     = {Electrically tunable bandpass filter with integrated carrier suppression for UHF RFID systems / Sadeghfam, Arash ; Heuermann, Holger},
  series = {European Microwave Conference, 2008, EuMC 2008, 38th},
  journal   = {European Microwave Conference, 2008, EuMC 2008, 38th},
  isbn      = {978-2-87487-006-4},
  pages     = {1727 -- 1730},
  year      = {2008},
  language  = {en}
}
@article{HeuermannSadeghfam2008,
  author    = {Heuermann, Holger and Sadeghfam, Arash},
  title     = {Electrically tunable bandpass filter with integrated carrier suppression for UHF RFID systems / Sadeghfam, Arash ; Heuermann, Holger},
  series = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  journal   = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  isbn      = {978-2-87487-008-8},
  pages     = {306 -- 309},
  year      = {2008},
  language  = {en}
}
@article{HeuermannIbrahim2008,
  author    = {Heuermann, Holger and Ibrahim, Irfan},
  title     = {Novel theory and architecture of a vector signal generator implemented with two PLLs / Ibrahim, Irfan ; Heuermann, Holger},
  series = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  journal   = {European Conference on Wireless Technology, 2008. EuWiT 2008.},
  isbn      = {978-2-87487-008-8},
  pages     = {85 -- 88},
  year      = {2008},
  language  = {en}
}
@article{HeuermannHillebrandSadeghfam2008,
  author    = {Heuermann, Holger and Hillebrand, J{\"u}rgen and Sadeghfam, Arash},
  title     = {Novel Concept of a Digital SigmaDelta-PLL-Phase-Shift-Modulator / Hillebrand, J{\"u}rgen ; Sadeghfam, Arash ; Heuermann, Holger},
  isbn      = {978-3-8007-3086-5},
  pages     = {123 -- 126},
  year      = {2008},
  language  = {en}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {Fehlerkorrigierte Mehrtormessungen f{\"u}r frequenzumsetzende Komponenten mit NonLin-S},
  series = {HF-Report : Hochfrequenztechnik, Optoelektronik, Mikrowellentechnik, Kommunikationstechnik. 22 (2008), H. 4},
  journal   = {HF-Report : Hochfrequenztechnik, Optoelektronik, Mikrowellentechnik, Kommunikationstechnik. 22 (2008), H. 4},
  isbn      = {1431-827X},
  pages     = {39 -- 44},
  year      = {2008},
  language  = {de}
}
@article{Heuermann2008,
  author    = {Heuermann, Holger},
  title     = {Calibration of a Network Analyzer Without a Thru Connection for Nonlinear and Multiport Measurements},
  series = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1},
  journal   = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1},
  isbn      = {0018-9480},
  pages     = {2505 -- 2510},
  year      = {2008},
  language  = {en}
}